Gaya APA
Krueger, Gretchen. (2008).
Opportunities in Petroleum Careers .
New York:
McGraw Hill.
Gaya Chicago
Krueger, Gretchen.
Opportunities in Petroleum Careers.
New York:
McGraw Hill,
2008.
Buku Tercetak.
Gaya MLA
Krueger, Gretchen.
Opportunities in Petroleum Careers.
New York:
McGraw Hill,
2008.
Buku Tercetak.
Gaya Turabian
Krueger, Gretchen.
Opportunities in Petroleum Careers.
New York:
McGraw Hill,
2008.
Buku Tercetak.