APA (7th ed.) Citation

Engel. (1973). Handbook of creative learning exercise. Gulf Pub. Co., Book Pub. Divisio.

Chicago Style (17th ed.) Citation

Engel. Handbook of Creative Learning Exercise. Houston: Gulf Pub. Co., Book Pub. Divisio, 1973.

MLA (8th ed.) Citation

Engel. Handbook of Creative Learning Exercise. Gulf Pub. Co., Book Pub. Divisio, 1973.

Warning: These citations may not always be 100% accurate.