MLA

Witherell, Julian W. Afghanistan : an American Perspective : a Guide to U.s. Official Documents and Government-sponsored Publications. Washington: Library of Congress , 1986.

APA

Witherell, J. W. (1986). Afghanistan : an American perspective : a guide to U.S. official documents and government-sponsored publications. Washington: Library of Congress .

Chicago

Witherell, Julian W. Afghanistan: An American Perspective : a Guide to U.S. Official Documents and Government-Sponsored Publications. Washington: Library of Congress, 1986.