APA Style
Duckson, Don W.. (1999).
EXERCISES IN PHYSICAL GEOGRAPHY THIRD EDITION (3).
Boston:
McGaw Hill.
Chicago Style
Duckson, Don W..
EXERCISES IN PHYSICAL GEOGRAPHY THIRD EDITION.
3
Boston:
McGaw Hill,
1999.
Text.
MLA Style
Duckson, Don W..
EXERCISES IN PHYSICAL GEOGRAPHY THIRD EDITION.
3
Boston:
McGaw Hill,
1999.
Text.
Turabian Style
Duckson, Don W..
EXERCISES IN PHYSICAL GEOGRAPHY THIRD EDITION.
3
Boston:
McGaw Hill,
1999.
Print.