Slud, P. (1980). The birds of Hacienda Palo Verde, Guanacaste, Costa Rica. Smithsonian Institution Press.
Chicago Style (17th ed.) CitationSlud, Paul. The Birds of Hacienda Palo Verde, Guanacaste, Costa Rica. Washington: Smithsonian Institution Press, 1980.
MLA (9th ed.) CitationSlud, Paul. The Birds of Hacienda Palo Verde, Guanacaste, Costa Rica. Smithsonian Institution Press, 1980.
Warning: These citations may not always be 100% accurate.