Cita APA

Doens, L. (1991). Sociology, Culture and Psychology: : Three Main Factors that Influence the Learning of a Foreign Language. David, Panamá: : CRU. Chiriquí.

Citación estilo Chicago

Doens, Ludgerio. Sociology, Culture and Psychology: : Three Main Factors That Influence the Learning of a Foreign Language. David, Panamá: : CRU. Chiriquí, 1991.

Cita MLA

Doens, Ludgerio. Sociology, Culture and Psychology: : Three Main Factors That Influence the Learning of a Foreign Language. David, Panamá: : CRU. Chiriquí, 1991.