एपीए उद्धरण

Segura, M., Etxaleku, N., Castillo, Á., Salazar, M., & Alvarado, A. (2005). Effect of P fertilization on the growth of Alnus acuminata plantations at Andisols of the Virilla river watershed, Costa Rica.

शिकागो स्टाइल उद्धरण

Segura, Manuel, Néstor Etxaleku, Álvaro Castillo, Marlon Salazar, और Alfredo Alvarado. Effect of P Fertilization On the Growth of Alnus Acuminata Plantations At Andisols of the Virilla River Watershed, Costa Rica. 2005.

एमएलए उद्धरण

Segura, Manuel, et al. Effect of P Fertilization On the Growth of Alnus Acuminata Plantations At Andisols of the Virilla River Watershed, Costa Rica. 2005.