Gaya APA
SCHWEBEL, M, [., RAPH, J, [.
(1973).
PIAGET in the classroom
.
London:
Routledge & Kegan Paul.
Gaya MLA
SCHWEBEL, Milton, [ed.]., RAPH, Jane, [ed.].
"PIAGET in the classroom".
London:
Routledge & Kegan Paul,
1973.
Buku.