APA (7th ed.) Citation

Monroe, W. H. (1980). Some tropical landforms of Puerto Rico: Landforms on a tropical island in the belt of the easterly tradewinds. United States Gov. Print. Off.

Chicago Style (17th ed.) Citation

Monroe, Watson H. Some Tropical Landforms of Puerto Rico: Landforms on a Tropical Island in the Belt of the Easterly Tradewinds. Washington: United States Gov. Print. Off, 1980.

MLA (9th ed.) Citation

Monroe, Watson H. Some Tropical Landforms of Puerto Rico: Landforms on a Tropical Island in the Belt of the Easterly Tradewinds. United States Gov. Print. Off, 1980.