एपीए उद्धरण

Vallejos, J., Badilla, Y., Picado, F., & Murillo, O. (2009). Plus trees selection and incorporation in tree improvement programs.

शिकागो स्टाइल उद्धरण

Vallejos, Jonathan, Yorleny Badilla, Félix Picado, और Olman Murillo. Plus Trees Selection and Incorporation in Tree Improvement Programs. 2009.

एमएलए उद्धरण

Vallejos, Jonathan, Yorleny Badilla, Félix Picado, और Olman Murillo. Plus Trees Selection and Incorporation in Tree Improvement Programs. 2009.