Cita APA (7a ed.)

Schaffer, H. R. (1996). Social development (1., publ.). Blackwell.

Cita Chicago Style (17a ed.)

Schaffer, Heinz Rudolph. Social Development. 1., publ. Oxford [u.a.]: Blackwell, 1996.

Cita MLA (9a ed.)

Schaffer, Heinz Rudolph. Social Development. 1., publ. Blackwell, 1996.