Stiles Hurd, F. G. 1., & Smith, S. M. (1977). New information on Costa Rican waterbirds. [Lugar de publicación no identificado]: [editor no identificado].
Chicago Style CitationStiles Hurd, Frank Garfield 1942-, and Susan M. Smith. New Information On Costa Rican Waterbirds. [Lugar de publicación no identificado]: [editor no identificado], 1977.
MLA CitationStiles Hurd, Frank Garfield 1942-, and Susan M. Smith. New Information On Costa Rican Waterbirds. [Lugar de publicación no identificado]: [editor no identificado], 1977.
Warning: These citations may not always be 100% accurate.