APA-Zitierstil (7. Ausg.)

Whalen, G. H. (1981). A study of the two imperfect subjunctive variants in Spanish. Univ. Microfilms Internat.

Chicago-Zitierstil (17. Ausg.)

Whalen, Gillian H. A Study of the Two Imperfect Subjunctive Variants in Spanish. Ann Arbor, Mich: Univ. Microfilms Internat, 1981.

MLA-Zitierstil (9. Ausg.)

Whalen, Gillian H. A Study of the Two Imperfect Subjunctive Variants in Spanish. Univ. Microfilms Internat, 1981.