APA

Scott F. a. C., South-western Publishing Company, . (19871988). Texto-temas. Río Piedras, P.R: Scott, Foresman and Company.

Chicago

Scott Foresman and Company, South-western Publishing Company, . 19871988. Texto-temas. Río Piedras, P.R: Scott, Foresman and Company.

Harvard

Scott F. a. C., South-western Publishing Company, . (19871988). Texto-temas. Río Piedras, P.R: Scott, Foresman and Company.

MLA

Scott Foresman and Company, South-western Publishing Company, . Texto-temas. Río Piedras, P.R: Scott, Foresman and Company. 19871988.