The vegetation of Petén. :
With an appendix: Studies of Mexican and Central American plants--I /
By Cyrus Longworth Lundell ...
APA Citation
Lundell, C. Longworth. (1937). The vegetation of Petén.: With an appendix: Studies of Mexican and Central American plants--I. Washington, D.C.: Carnegie Institution of Washington.
MLA Citation
Lundell, Cyrus Longworth, 1907-1994. The Vegetation of Petén.: With an Appendix: Studies of Mexican And Central American Plants--I. Washington, D.C.: Carnegie Institution of Washington, 1937.
Warning: These citations may not always be complete (especially for serials).