Gaya APA

Dauhtrey, G., Gray, I, L, C. (NULL). Effective teaching strategies in secondary physical education . Philadelphia:: Philadelphia: W.B. Saunders; 1979.

Gaya MLA

Dauhtrey, Greyson., Gray, I., Lewis,, Clifford. "Effective teaching strategies in secondary physical education". Philadelphia:: Philadelphia: W.B. Saunders; 1979, NULL. Text.