BUSCADOR DE RECURSOS UNSAM

Cita APA (7a ed.)

Horstman Connally, E. (1982). National parks in crisis. National Parks & Conservation Association.

Cita Chicago Style (17a ed.)

Horstman Connally, Eugenia. National Parks in Crisis. Washington, D.C.: National Parks & Conservation Association, 1982.

Cita MLA (8a ed.)

Horstman Connally, Eugenia. National Parks in Crisis. National Parks & Conservation Association, 1982.