APA (7e ed.) Bronvermelding

(1978). Playthings: Directory Issue ; 1978 ; for today's merchandisers of Toys, Hobbies and Crafts. Geyer-McAllister Publications.

Chicago (17e ed.) Bronvermelding

Playthings: Directory Issue ; 1978 ; for Today's Merchandisers of Toys, Hobbies and Crafts. New York: Geyer-McAllister Publications, 1978.

MLA (8e ed.) Bronvermelding

Playthings: Directory Issue ; 1978 ; for Today's Merchandisers of Toys, Hobbies and Crafts. Geyer-McAllister Publications, 1978.