APA (7th ed.) Citation
ebrary, Inc, & Sack, R. D. (2002). Progress: Geographical essays. Johns Hopkins University Press.
Chicago Style (17th ed.) Citation
ebrary, Inc, and Robert David Sack. Progress: Geographical Essays. Baltimore: Johns Hopkins University Press, 2002.
MLA (9th ed.) Citation
ebrary, Inc, and Robert David Sack. Progress: Geographical Essays. Johns Hopkins University Press, 2002.
Warning: These citations may not always be 100% accurate.