Gaya APA
Penck, Walther, Czech, Hella, Boswell, Katherine Cunning. (1972).
Morphological analysis of landforms : a contribution to physical geology .
New York:
Hafner.
Gaya Chicago
Penck, Walther, Czech, Hella, Boswell, Katherine Cunning.
Morphological analysis of landforms : a contribution to physical geology.
New York:
Hafner,
1972.
Text.
Gaya MLA
Penck, Walther, Czech, Hella, Boswell, Katherine Cunning.
Morphological analysis of landforms : a contribution to physical geology.
New York:
Hafner,
1972.
Text.
Gaya Turabian
Penck, Walther, Czech, Hella, Boswell, Katherine Cunning.
Morphological analysis of landforms : a contribution to physical geology.
New York:
Hafner,
1972.
Print.