Cita APA (7a ed.)

Fowler, W. S., Pidcock, J., & Yorkey, R. C. Incentive themes. Book 4, teacher´s edition.

Cita Chicago Style (17a ed.)

Fowler, W. S., J. Pidcock, y Richard C. Yorkey. Incentive Themes. Book 4, Teacher´s Edition.

Cita MLA (8a ed.)

Fowler, W. S., et al. Incentive Themes. Book 4, Teacher´s Edition.