APA

Stanley N., . (1988). Thinking in english 1. México: Macmillan.

Chicago

Stanley Nancy, . 1988. Thinking in english 1. México: Macmillan.

Harvard

Stanley N., . (1988). Thinking in english 1. México: Macmillan.

MLA

Stanley Nancy, . Thinking in english 1. México: Macmillan. 1988.