APA aipamena

Hertzon, S. (1971). Hospitality industry cooperative training. ITT Educational Services.

Chicago Style aipamena

Hertzon, Seymour. Hospitality Industry Cooperative Training. New York: ITT Educational Services, 1971.

MLA aipamena

Hertzon, Seymour. Hospitality Industry Cooperative Training. ITT Educational Services, 1971.