Gaya APA
Johnson, G, B, J, G, B.
(2008).
The living world.--
(
Ed, 5th.--)
.
America:
McGraw-Hill.
Gaya MLA
Johnson, George, B., Johnson,, George, B..
"The living world.--".
Ed, 5th.--
America:
McGraw-Hill,
2008.
Buku.