Ball, I. R., & Gourbault, N. (1975). The morphology, karyology and taxonomy of a new freshwater planarian of the genus Phagocata from California (Platyhelminthes: Turbellaria). Royal Ontarion Museum.
Chicago Style (17th ed.) CitationBall, Ian R., and Nicole Gourbault. The Morphology, Karyology and Taxonomy of a New Freshwater Planarian of the Genus Phagocata from California (Platyhelminthes: Turbellaria). Toronto: Royal Ontarion Museum, 1975.
MLA (9th ed.) CitationBall, Ian R., and Nicole Gourbault. The Morphology, Karyology and Taxonomy of a New Freshwater Planarian of the Genus Phagocata from California (Platyhelminthes: Turbellaria). Royal Ontarion Museum, 1975.
Warning: These citations may not always be 100% accurate.