Cita APA (7th ed.)

Smith, R. M., Aker, G. F., & Kidd, J. Handbook of Adult Educaton.

Cita Chicago (17th ed.)

Smith, Robert M., George F. Aker, i J.R Kidd. Handbook of Adult Educaton.

Cita MLA (9th ed.)

Smith, Robert M., et al. Handbook of Adult Educaton.