APA (7th ed.) Citation

Pietra, F. (1990). A secret world: Natural products of marine life. Birkhäuser Verlag.

Chicago Style (17th ed.) Citation

Pietra, Francesco. A Secret World: Natural Products of Marine Life. Basel ; Boston: Birkhäuser Verlag, 1990.

MLA (9th ed.) Citation

Pietra, Francesco. A Secret World: Natural Products of Marine Life. Birkhäuser Verlag, 1990.

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