Gaya APA
Spring, Joel. (2014).
American education (16th. ed.).
New York:
Mc Graw Hill.
Gaya Chicago
Spring, Joel.
American education.
16th. ed.
New York:
Mc Graw Hill,
2014.
Text.
Gaya MLA
Spring, Joel.
American education.
16th. ed.
New York:
Mc Graw Hill,
2014.
Text.
Gaya Turabian
Spring, Joel.
American education.
16th. ed.
New York:
Mc Graw Hill,
2014.
Print.