Cita APA (7th ed.)

Mark, C., & Langer, R. (1990). Biodegradable Polymers as Drug Delivery System. New York.

Cita Chicago (17th ed.)

Mark, Chasin, i Robert Langer. Biodegradable Polymers as Drug Delivery System. Marcel Dekker: New York, 1990.

Cita MLA (9th ed.)

Mark, Chasin, i Robert Langer. Biodegradable Polymers as Drug Delivery System. New York, 1990.