Παραπομπή APA

Heck, J. G. (1994). Heck's pictorial archive of military science, geography and history. New York: Dover publications, Inc..

Παραπομπή Chicago Style

Heck, J. G. Heck's Pictorial Archive of Military Science, Geography and History. New York: Dover publications, Inc., 1994.

Παραπομπή MLA

Heck, J. G. Heck's Pictorial Archive of Military Science, Geography and History. New York: Dover publications, Inc., 1994.

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