Dyfyniad APA

Walker, E. L. (1970). Psychology as a natural and social science. Brooks/Cole.

Dyfyniad Arddull Chicago

Walker, Edward L. Psychology as a Natural and Social Science. Belmont, Calif: Brooks/Cole, 1970.

Dyfyniad MLA

Walker, Edward L. Psychology as a Natural and Social Science. Brooks/Cole, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.