Tropical vegetation on the road to Puerto Vallarta

Chicago citation style
Gulick, Howard E. Tropical vegetation on the road to Puerto Vallarta. 1962-05-08. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb80217584. (Accessed December 17, 2018.)
APA citation style
Gulick, Howard E, (1962-05-08) Tropical vegetation on the road to Puerto Vallarta. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb80217584
MLA citation style
Gulick, Howard E. Retrieved from the Digital Public Library of America <https://library.ucsd.edu/dc/object/bb80217584>.
Note: These citations are programmatically generated and may be incomplete.