APA
Wilhelms F. T., Heimerl R. P. & Jelley H. m. (1966). Consumer economics. New York: McGraw Hill.
Chicago
Wilhelms Fred T, Heimerl Ramon P and Jelley HERBERT m. 1966. Consumer economics. New York: McGraw Hill.
Harvard
Wilhelms F. T., Heimerl R. P. and Jelley H. m. (1966). Consumer economics. New York: McGraw Hill.
MLA
Wilhelms Fred T, Heimerl Ramon P and Jelley HERBERT m. Consumer economics. New York: McGraw Hill. 1966.