APA-viite

Carlos Vargas, J. (2005). Mark Twain in Costa Rica? The English text and Spanish translation of Mark Twain's trip to Nicaragua and the San Juan River.

Chicago-tyylinen lähdeviittaus

Carlos Vargas, Juan. Mark Twain in Costa Rica? The English Text and Spanish Translation of Mark Twain's Trip to Nicaragua and the San Juan River. 2005.

MLA-viite

Carlos Vargas, Juan. Mark Twain in Costa Rica? The English Text and Spanish Translation of Mark Twain's Trip to Nicaragua and the San Juan River. 2005.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.