SNORKELER AT JOHN PENNEKAMP CORAL REEF STATE PARK NEAR KEY LARGO. AT THE TIME OF THIS PICTURE, WATER CLARITY WAS GOOD, BUT EXPERIENCED DIVERS SAY CLARITY IS FAR LESS THAN IT WAS 20 YEARS AGO BECAUSE OF DREDGING AND FILLING OPERATIONS BY LAND DEVELOPERS

Chicago citation style
Environmental Protection Agency. 12/2/1970-. SNORKELER AT JOHN PENNEKAMP CORAL REEF STATE PARK NEAR KEY LARGO. AT THE TIME OF THIS PICTURE, WATER CLARITY WAS GOOD, BUT EXPERIENCED DIVERS SAY CLARITY IS FAR LESS THAN IT WAS 20 YEARS AGO BECAUSE OF DREDGING AND FILLING OPERATIONS BY LAND DEVELOPERS. 1973-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/548714. (Accessed June 20, 2018.)
APA citation style
Environmental Protection Agency. 12/2/1970-, (1973-06) SNORKELER AT JOHN PENNEKAMP CORAL REEF STATE PARK NEAR KEY LARGO. AT THE TIME OF THIS PICTURE, WATER CLARITY WAS GOOD, BUT EXPERIENCED DIVERS SAY CLARITY IS FAR LESS THAN IT WAS 20 YEARS AGO BECAUSE OF DREDGING AND FILLING OPERATIONS BY LAND DEVELOPERS. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/548714
MLA citation style
Environmental Protection Agency. 12/2/1970-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/548714>.
Note: These citations are programmatically generated and may be incomplete.