Cita APA (7a ed.)
Watanabe, I., & Ramirez, C. (1990). Phosphorus and Nitrogen Contents of Azolla Grown in the Philippines. Informa UK Limited.
Cita Chicago Style (17a ed.)
Watanabe, Iwao, y Corazon Ramirez. Phosphorus and Nitrogen Contents of Azolla Grown in the Philippines. Informa UK Limited, 1990.
Cita MLA (9a ed.)
Watanabe, Iwao, y Corazon Ramirez. Phosphorus and Nitrogen Contents of Azolla Grown in the Philippines. Informa UK Limited, 1990.
Precaución: Estas citas no son 100% exactas.