Gaya APA
Peterson, D, E., Lee, C, D. (2005).
Aquatic Plants and Their Control .
Kansas:
Kansas State University Agricultural Experiment Station and Cooperative Extension Service.
Gaya MLA
Peterson, Dallas, E.., Lee, Charles, D..
"Aquatic Plants and Their Control".
Kansas:
Kansas State University Agricultural Experiment Station and Cooperative Extension Service,
2005.
e-journal.