Citazione Stile APA (7a Edizione)

Preston, P. (1982). Theories of development. Routledge and kegan Paul.

Citazione stile Chigago Style (17a edizione)

Preston, P.w. Theories of Development. London: Routledge and kegan Paul, 1982.

Citatione MLA (9a ed.)

Preston, P.w. Theories of Development. Routledge and kegan Paul, 1982.