APA

Negrón Martínez E. L., . (2018). Public health and the environment. : University of Puerto Rico, Medical Science Campus.

Chicago

Negrón Martínez Edna L, . 2018. Public health and the environment. : University of Puerto Rico, Medical Science Campus.

Harvard

Negrón Martínez E. L., . (2018). Public health and the environment. : University of Puerto Rico, Medical Science Campus.

MLA

Negrón Martínez Edna L, . Public health and the environment. : University of Puerto Rico, Medical Science Campus. 2018.