Gaya APA
Dunbar, Carl O.. (1957).
Principles of stratigraphy (text).
New York:
John Wiley & Sons.
Gaya Chicago
Dunbar, Carl O..
Principles of stratigraphy.
text
New York:
John Wiley & Sons,
1957.
Tesis.
Gaya MLA
Dunbar, Carl O..
Principles of stratigraphy.
text
New York:
John Wiley & Sons,
1957.
Tesis.
Gaya Turabian
Dunbar, Carl O..
Principles of stratigraphy.
text
New York:
John Wiley & Sons,
1957.
Tesis.