Gaya APA

POWELL, D, H. (1983). UNDERSTANDING HUMAN ADJUSTMENT NORMAL ADAPTATION THROUGH THE LIFE CYCLE . Boston Toronto: LITTLE, BROWN AND COMPANY.

Gaya MLA

POWELL, Douglas, H.. "UNDERSTANDING HUMAN ADJUSTMENT NORMAL ADAPTATION THROUGH THE LIFE CYCLE". Boston Toronto: LITTLE, BROWN AND COMPANY, 1983. Textbook.