APA-Zitierstil (7. Ausg.)

Spitzer, D. R. (1977). Concept formation and learning in early childhood. Merrill.

Chicago-Zitierstil (17. Ausg.)

Spitzer, Dean R. Concept Formation and Learning in Early Childhood. Columbus, O: Merrill, 1977.

MLA-Zitierstil (9. Ausg.)

Spitzer, Dean R. Concept Formation and Learning in Early Childhood. Merrill, 1977.