Cita APA (7a ed.)

KRUG, M. M. (1967). History and the social science. Blaisdell Pub.

Cita Chicago Style (17a ed.)

KRUG, Mark M. History and the Social Science. Toronto: Blaisdell Pub, 1967.

Cita MLA (9a ed.)

KRUG, Mark M. History and the Social Science. Blaisdell Pub, 1967.