APA-referens (7:e uppl.)

Rickey, G. (1995). Constructivism: Origins and evolution (1. revised ed.). George Braziller.

Chicago-referens (17:e uppl.)

Rickey, George. Constructivism: Origins and Evolution. 1. revised ed. New York: George Braziller, 1995.

MLA-referens (8:e uppl.)

Rickey, George. Constructivism: Origins and Evolution. 1. revised ed. George Braziller, 1995.