APA

Lawesson J. E., . (1987). Galápagos workshop. : .

Chicago

Lawesson Jonas E, . 1987. Galápagos workshop. : .

Harvard

Lawesson J. E., . (1987). Galápagos workshop. : .

MLA

Lawesson Jonas E, . Galápagos workshop. : . 1987.