Using a range of primary and secondary sources
including the obvious (diaries, advertisements, maps) and the innovative (rail-road timetables), Hepp attempts to show how middle-class Philadelphians constructed an increasingly compartmentalized urban environment in the last quarter of the nineteenth century.
All the groups would have met the requirement of two scholarly sources if they could have used either primary or secondary sources
Students of authors like Conrad Celtis, Joachim Vadian, or other German humanist poets will also appreciate the numerous and informative footnotes and the rich bibliography of primary and secondary sources
In addition, Pack's inclusion of qualitative data was based on the use of secondary sources
such as magazine articles, Chamber of Commerce materials and real estate periodicals which can present an optimistic discussion of local economic conditions.
Despite this heavy dependence on secondary sources
, the author seems unaware of much that has been published on the work of Lutyens and his disciples in New Delhi (such as my own article in the AR for June 1976 on Medd and Shoosmith, the latter the architect of the amazing Garrison Church, for which Volwahsen gives an inadequate account), although perhaps he could not be expected to be aware of either Jane Ridley's The Architect and His Wife nor the collectio n of essays on Lutyens Abroad edited by Andrew Hopkins and myself, both of which were published last year.
Debbie Lee's research in both primary and secondary sources
is impressive, and her writing is crisp, clear, and graceful almost everywhere.
In assembling and ordering so much of the primary record and supplementing it with a wealth of illuminating, secondary sources
, Garthoff has done for the final decades of Soviet-American relations what the Venerable Bede did for the early centuries of English Christianity.
Marquardt relies heavily on secondary sources
. That's too bad, because she's a prominent warrior against animal-rights extremism.
"According to secondary sources
, total OPEC-15 crude oil production averaged 32.33 million barrels per day in June, an increase of 173,000 barrels per day over the previous month," said the report.
The At Issue series "includes both primary and secondary sources
from a variety of perspectives--eyewitnesses, scientific journals, government officials, and many others," according to the publisher.
As she does throughout the book, Battista cites secondary sources
Students may likewise have to depend more on secondary sources
if they do not have access to archival materials.