APA Style

Gualdo, R, S. (2000). Ethics: basic concepts and contemporary moral issues . 12 P. Gomez t. Maysan, Valenzu: Mutya Publishing House.

MLA Style

Gualdo, Rosendo, S. "Ethics: basic concepts and contemporary moral issues". 12 P. Gomez t. Maysan, Valenzu: Mutya Publishing House, 2000. Text.