एपीए उद्धरण

Amador Astúa, J. A., Burgos Rivas, Á., Soley Alfaro, F. J., Serpas Claros, J. G., & Vargas, A. (1993). Remote sensing at the Centre for Geophysical Research, University of Costa Rica.

शिकागो स्टाइल उद्धरण

Amador Astúa, Jorge Alberto, Álvaro Burgos Rivas, Francisco Javier Soley Alfaro, Juan Gabriel Serpas Claros, और A. Vargas. Remote Sensing At the Centre for Geophysical Research, University of Costa Rica. 1993.

एमएलए उद्धरण

Amador Astúa, Jorge Alberto, et al. Remote Sensing At the Centre for Geophysical Research, University of Costa Rica. 1993.