APA Style
Bernstein, Leonard. (2009).
Earth science (4th ed).
Amerika:
Pearson Education.
Chicago Style
Bernstein, Leonard.
Earth science.
4th ed
Amerika:
Pearson Education,
2009.
Text.
MLA Style
Bernstein, Leonard.
Earth science.
4th ed
Amerika:
Pearson Education,
2009.
Text.
Turabian Style
Bernstein, Leonard.
Earth science.
4th ed
Amerika:
Pearson Education,
2009.
Print.