Edwards, V. M. (1969). Tumbling. Saunders.
Chicago Style (17th ed.) CitationEdwards, Vannie M. Tumbling. Philadelphia: Saunders, 1969.
MLA (9th ed.) CitationEdwards, Vannie M. Tumbling. Saunders, 1969.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.