Παραπομπή APA

Gopal Lal Jain. (2003). Research methodology: Methods, tools & techniques (2.). Mangal Deep.

Παραπομπή Chicago Style

Gopal Lal Jain. Research Methodology: Methods, Tools & Techniques. 2. Jaipur: Mangal Deep, 2003.

Παραπομπή MLA

Gopal Lal Jain. Research Methodology: Methods, Tools & Techniques. 2. Mangal Deep, 2003.