Gaya APA

Lado, Robert. (1978). Lado english series, book 1 (text). New York: Regents.

Gaya Chicago

Lado, Robert. Lado english series, book 1. text New York: Regents, 1978. Tesis.

Gaya MLA

Lado, Robert. Lado english series, book 1. text New York: Regents, 1978. Tesis.

Gaya Turabian

Lado, Robert. Lado english series, book 1. text New York: Regents, 1978. Tesis.