APA-ийн эшлэл(7 дахь хэвлэлт)

e-libro, Corp, International Symposium on the Ordovician System, Gutiérrez-Marco, J. C., Rábano, I., & García-Bellido, D. c. (2011). Ordovician of the World: 11th International Symposium on the Ordovician System, Alcalá de Henares, Spain, May 9-13, 2011. Instituto Geológico y Minero de España.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

e-libro, Corp, International Symposium on the Ordovician System, Juan Carlos Gutiérrez-Marco, Isabel Rábano, ба Diego c. García-Bellido. Ordovician of the World: 11th International Symposium on the Ordovician System, Alcalá De Henares, Spain, May 9-13, 2011. Madrid: Instituto Geológico y Minero de España, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

e-libro, Corp, et al. Ordovician of the World: 11th International Symposium on the Ordovician System, Alcalá De Henares, Spain, May 9-13, 2011. Instituto Geológico y Minero de España, 2011.