Citazione Stile APA (7a Edizione)

Franko, E. (1945). An english course for spanish speaking people: Book 1 (3° ed.). Soc. Imprenta i litografía Universo.

Citazione stile Chigago Style (17a edizione)

Franko, Ektor. An English Course for Spanish Speaking People: Book 1. 3° ed. Valparaíso: Soc. Imprenta i litografía Universo, 1945.

Citatione MLA (9a ed.)

Franko, Ektor. An English Course for Spanish Speaking People: Book 1. 3° ed. Soc. Imprenta i litografía Universo, 1945.