Cita APA (7th ed.)
Clark, L. E., Wickeraham, C., & Elson, B. Sayula popoluca texts: Grammatical outline.
Cita Chicago (17th ed.)
Clark, Lawrence E., Charles Wickeraham, i Benjamin Elson. Sayula Popoluca Texts: Grammatical Outline.
Cita MLA (9th ed.)
Clark, Lawrence E., et al. Sayula Popoluca Texts: Grammatical Outline.
Atenció: Aquestes cites poden no estar 100% correctes.