Cita APA

Brown Gfrorer, B. K. (1977). Basic English for students of social sciences and humanities. San Pedro de Montes de Oca, C.R.: Editorial Universidad de Costa Rica.

Citación estilo Chicago

Brown Gfrorer, Bonnie Kay. Basic English for Students of Social Sciences and Humanities. San Pedro de Montes de Oca, C.R.: Editorial Universidad de Costa Rica, 1977.

Cita MLA

Brown Gfrorer, Bonnie Kay. Basic English for Students of Social Sciences and Humanities. San Pedro de Montes de Oca, C.R.: Editorial Universidad de Costa Rica, 1977.