Cita APA

Bisaz, A. (1997). Mountains of the world: Challenges for the 21st century. Switzerland: Mountain Agenda.

Citación estilo Chicago

Bisaz, Andri. Mountains of the World: Challenges for the 21st Century. Switzerland: Mountain Agenda, 1997.

Cita MLA

Bisaz, Andri. Mountains of the World: Challenges for the 21st Century. Switzerland: Mountain Agenda, 1997.

Precaución: Estas citas no son 100% exactas.