Παραπομπή σε μορφή APA (7η εκδ.)

Kreps, E. H. (1910). Camp and trail methods: Interesting information for all lovers of nature, what to take and what to do. Harding.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kreps, Elmer Harry. Camp and Trail Methods: Interesting Information for All Lovers of Nature, What to Take and What to Do. Columbus, Ohio: Harding, 1910.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kreps, Elmer Harry. Camp and Trail Methods: Interesting Information for All Lovers of Nature, What to Take and What to Do. Harding, 1910.