Cita APA (7th ed.)

Byleen, E., Holten, C., & Marasco, J. (1998). Looking ahead: Instructor's manual, book 3 and book 4 (1a. ed.). Heinle & Heinle.

Cita Chicago (17th ed.)

Byleen, Elizabeth, Christine Holten, i Judith Marasco. Looking Ahead: Instructor's Manual, Book 3 and Book 4. 1a. ed. Pacific Grove: Heinle & Heinle, 1998.

Cita MLA (9th ed.)

Byleen, Elizabeth, et al. Looking Ahead: Instructor's Manual, Book 3 and Book 4. 1a. ed. Heinle & Heinle, 1998.