APA (7th ed.) Citation

(1993). Biology of the species porphyromonas gingivalis. CRC Press.

Chicago Style (17th ed.) Citation

Biology of the Species Porphyromonas Gingivalis. Boca Raton u.a: CRC Press, 1993.

MLA (9th ed.) Citation

Biology of the Species Porphyromonas Gingivalis. CRC Press, 1993.

Warning: These citations may not always be 100% accurate.