Wilson, E. Bright
An Introduction to scientific research
McGraw-Hill, 1952
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Wilson, Bright E., Jr.
An introduction to scientific research / E. Bright Wilson, Jr.
Dover Publications, 1990
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An introduction to social research / Edited by John T. Doby
Irvington Publ., 1967
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Chang, Kang-Tsung, 1943-
Introduction to geographic information systems
McGraw-Hill, 2014
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Chang, Kang-Tsung, 1943-
Introduction to Geographic Information Systems
McGraw-Hill, 2012
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