Cita APA (7th ed.)

Fitzpatrick, C. H., & Ruscica, M. B. (1993). Reading thresholds. D.C. Heath.

Cita Chicago (17th ed.)

Fitzpatrick, Carolyn H., i Marybeth B. Ruscica. Reading Thresholds. Lexington, Mass: D.C. Heath, 1993.

Cita MLA (9th ed.)

Fitzpatrick, Carolyn H., i Marybeth B. Ruscica. Reading Thresholds. D.C. Heath, 1993.