Gaya APA
Rand, Ayn. (1971).
Philosophy : an introduction (revised edition).
New York:
Barnes & Noble Books.
Gaya Chicago
Rand, Ayn.
Philosophy : an introduction.
revised edition
New York:
Barnes & Noble Books,
1971.
.
Gaya MLA
Rand, Ayn.
Philosophy : an introduction.
revised edition
New York:
Barnes & Noble Books,
1971.
.
Gaya Turabian
Rand, Ayn.
Philosophy : an introduction.
revised edition
New York:
Barnes & Noble Books,
1971.
.