APA Citation

Alfaro, M. d. R. (1991). How can one select the air to breathe? Universidad Nacional, Costa Rica.

Chicago Style Citation

Alfaro, María del Rosario. How Can One Select the Air to Breathe? Universidad Nacional, Costa Rica, 1991.

MLA Citation

Alfaro, María del Rosario. How Can One Select the Air to Breathe? Universidad Nacional, Costa Rica, 1991.

Warning: These citations may not always be 100% accurate.