APA

Baert L., Maelfait J. & Desender K. (1989). Results of the Belgian 1986 expedition Araneae, and provisional checklist of the spiders of the Galápagos Archipelago. : .

Chicago

Baert Léon, Maelfait J.-P and Desender K. 1989. Results of the Belgian 1986 expedition Araneae, and provisional checklist of the spiders of the Galápagos Archipelago. : .

Harvard

Baert L., Maelfait J. and Desender K. (1989). Results of the Belgian 1986 expedition Araneae, and provisional checklist of the spiders of the Galápagos Archipelago. : .

MLA

Baert Léon, Maelfait J.-P and Desender K. Results of the Belgian 1986 expedition Araneae, and provisional checklist of the spiders of the Galápagos Archipelago. : . 1989.