APA ציטוט

Christensen, H. B. (1977). Statistics step by step. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Christensen, Howard B. Statistics Step by Step. Boston: Houghton Mifflin, 1977.

ציטוט MLA

Christensen, Howard B. Statistics Step by Step. Houghton Mifflin, 1977.