Cita APA (7th ed.)

Tjolle, R., & Schaerlaekens, A. (1969). Teachers' handbook. St. Louis University.

Cita Chicago (17th ed.)

Tjolle, Roger, i Annunciata Schaerlaekens. Teachers' Handbook. Baguio City: St. Louis University, 1969.

Cita MLA (9th ed.)

Tjolle, Roger, i Annunciata Schaerlaekens. Teachers' Handbook. St. Louis University, 1969.