Gaya APA
Leifer, S, M.
(2013).
Growth and Development Across the Lifespan
(
-2)
.
Amerika:
Elsevier (Singapore).
Gaya MLA
Leifer, Sarah, Masseyow.
"Growth and Development Across the Lifespan".
-2
Amerika:
Elsevier (Singapore),
2013.
Buku Teks.