Gaya APA
Eckel, P, J. (1985).
College & University FoodService Management Standarts (Vol. 6).
United States of America:
The Avi Publishing.
Gaya MLA
Eckel, Peter, J.
"College & University FoodService Management Standarts".
Vol. 6
United States of America:
The Avi Publishing,
1985.
Text.