Cita APA (7a ed.)

Adelson Goldstein, J., Goldman, R., & Shapiro, N. Listening and speaking activity book.

Cita Chicago Style (17a ed.)

Adelson Goldstein, Jayme, Rheta Goldman, y Norma Shapiro. Listening and Speaking Activity Book.

Cita MLA (8a ed.)

Adelson Goldstein, Jayme, et al. Listening and Speaking Activity Book.