APA-viite (7. p.)

Velasco, G., Mármol, M., & Alvear, J. (2010). Native language interference in learning english as a foreign language: An analysis of written material produced by spanish speaking students in senior high school classes.

Chicago-viite (17. p.)

Velasco, Gilda, María Mármol, ja Janeth Alvear. Native Language Interference in Learning English as a Foreign Language: An Analysis of Written Material Produced by Spanish Speaking Students in Senior High School Classes. 2010.

MLA-viite (9. p.)

Velasco, Gilda, et al. Native Language Interference in Learning English as a Foreign Language: An Analysis of Written Material Produced by Spanish Speaking Students in Senior High School Classes. 2010.