APA

Cotín J., Fessl B., Samaniego G. & Robinson G. (2014). Galapagos martin (Progne modesta) identification guide & observation and nesting data forms. : .

Chicago

Cotín J, Fessl B, Samaniego G and Robinson G. 2014. Galapagos martin (Progne modesta) identification guide & observation and nesting data forms. : .

Harvard

Cotín J., Fessl B., Samaniego G. and Robinson G. (2014). Galapagos martin (Progne modesta) identification guide & observation and nesting data forms. : .

MLA

Cotín J, Fessl B, Samaniego G and Robinson G. Galapagos martin (Progne modesta) identification guide & observation and nesting data forms. : . 2014.