Howard, H., & Barnes, L. G. (1987). Middle Miocene marine birds from the foothills of the Santa Ana Mountains, Orange County, California. Natural History Museum of Los Angeles County.
Chicago Style (17th ed.) CitationHoward, Hildegarde, and Lawrence G. Barnes. Middle Miocene Marine Birds from the Foothills of the Santa Ana Mountains, Orange County, California. Los Angeles, Calif: Natural History Museum of Los Angeles County, 1987.
MLA (9th ed.) CitationHoward, Hildegarde, and Lawrence G. Barnes. Middle Miocene Marine Birds from the Foothills of the Santa Ana Mountains, Orange County, California. Natural History Museum of Los Angeles County, 1987.
Warning: These citations may not always be 100% accurate.