Gaya APA
Spring, Joel. (2008).
American education (13th. Ed.).
Boston:
McGraw-Hill.
Gaya Chicago
Spring, Joel.
American education.
13th. Ed.
Boston:
McGraw-Hill,
2008.
Text.
Gaya MLA
Spring, Joel.
American education.
13th. Ed.
Boston:
McGraw-Hill,
2008.
Text.
Gaya Turabian
Spring, Joel.
American education.
13th. Ed.
Boston:
McGraw-Hill,
2008.
Print.