APA (7th ed.) Citation

Margolis, S.. (2005). The John Hopkin's: Medical guide to health after 50. Black Dog & Leventhal Publishers, Inc.

Chicago Style (17th ed.) Citation

Margolis, Simeon. The John Hopkin's: Medical Guide to Health After 50. New York: Black Dog & Leventhal Publishers, Inc, 2005.

MLA (9th ed.) Citation

Margolis, Simeon. The John Hopkin's: Medical Guide to Health After 50. Black Dog & Leventhal Publishers, Inc, 2005.