APA ציטוט

Marczyk, G. R. (2005). Essentials of research design and methodology. Hoboken, N.J: John Wiley & Sons.

Trích dẫn kiểu Chicago

Marczyk, Geoffrey R. Essentials of Research Design and Methodology. Hoboken, N.J: John Wiley & Sons, 2005.

ציטוט MLA

Marczyk, Geoffrey R. Essentials of Research Design and Methodology. Hoboken, N.J: John Wiley & Sons, 2005.