Tohutoro APA (7th ed.)

Günther Doering, J., & Lohmann Villena, G. (1992). Lima. MAPFRE.

Tohutoru Kātū Chicago (17th ed.)

Günther Doering, Juan, me Guillermo Lohmann Villena. Lima. Madrid: MAPFRE, 1992.

Tohutoro MLA (9th ed.)

Günther Doering, Juan, me Guillermo Lohmann Villena. Lima. MAPFRE, 1992.