APA (7e ed.) Bronvermelding

Time-Life Books. (1987). Getting firm: Shaping and toning. Time-Life Books.

Chicago (17e ed.) Bronvermelding

Time-Life Books. Getting Firm: Shaping and Toning. Alexandria, Virginia: Time-Life Books, 1987.

MLA (9e ed.) Bronvermelding

Time-Life Books. Getting Firm: Shaping and Toning. Time-Life Books, 1987.

Let op: Deze citaties zijn niet altijd 100% accuraat.