Dyfyniad APA

O''Hanlon, R. (1990). In trouble again: Journey between orinoco and the amazon (First Vintage departure edition.). AUWSF.

Dyfyniad Arddull Chicago

O''Hanlon, Redmond. In Trouble Again: Journey Between Orinoco and the Amazon. First Vintage departure edition. New York: AUWSF, 1990.

Dyfyniad MLA

O''Hanlon, Redmond. In Trouble Again: Journey Between Orinoco and the Amazon. First Vintage departure edition. AUWSF, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.