APA ציטוט

Hedderson, J. (1986). SPSSx Made simple. Wadsworth publ. Co..

Chicago Style (17th ed.) Citation

Hedderson, John. SPSSx Made Simple. California: Wadsworth publ. Co., 1986.

ציטוט MLA

Hedderson, John. SPSSx Made Simple. Wadsworth publ. Co., 1986.