APA استشهاد

Tack, A. (1974). How to overcome nervous tension and speak well in public. World's book.

استشهاد بنمط شيكاغو

Tack, Albert. How to Overcome Nervous Tension and Speak Well in Public. Trowbridge: World's book, 1974.

MLA استشهاد

Tack, Albert. How to Overcome Nervous Tension and Speak Well in Public. World's book, 1974.