Citazione Stile APA (7a Edizione)

ADAMS GERALD R. (1985). UNDERSTANDING RESEARCH METHODS. LONGMAN GROUP.

Citazione stile Chigago Style (17a edizione)

ADAMS GERALD R. UNDERSTANDING RESEARCH METHODS. NEW YORK LONDON: LONGMAN GROUP, 1985.

Citatione MLA (9a ed.)

ADAMS GERALD R. UNDERSTANDING RESEARCH METHODS. LONGMAN GROUP, 1985.