Cita APA (7a ed.)

Barisani, B., Freebairn, I., & Kasza Keiko. (1998). Snapshot elementary language booster: Workbook with grammar builder.

Cita Chicago Style (17a ed.)

Barisani, Blas, Ingrid Freebairn, y Kasza Keiko. Snapshot Elementary Language Booster: Workbook with Grammar Builder. Longman, 1998.

Cita MLA (8a ed.)

Barisani, Blas, et al. Snapshot Elementary Language Booster: Workbook with Grammar Builder. 1998.