Παραπομπή APA

Bakker. George P. & Germane, G. E. (1957). Case problems in transportation management. Mc Graw Hill.

Παραπομπή Chicago Style

Bakker. George P. και Gaylon E. Germane. Case Problems in Transportation Management. New York: Mc Graw Hill, 1957.

Παραπομπή MLA

Bakker. George P. και Gaylon E. Germane. Case Problems in Transportation Management. Mc Graw Hill, 1957.