Cita APA (7a ed.)

Bravo, A. (2005). Heavy metal levels in plasma and fecal material samples of the black vulture (coragyps atratus). Universidad del Zulia.

Cita Chicago Style (17a ed.)

Bravo, Alfonso. Heavy Metal Levels in Plasma and Fecal Material Samples of the Black Vulture (coragyps Atratus). Universidad del Zulia, 2005.

Cita MLA (9a ed.)

Bravo, Alfonso. Heavy Metal Levels in Plasma and Fecal Material Samples of the Black Vulture (coragyps Atratus). Universidad del Zulia, 2005.