International Workshop On Volcanic Rocks, Workshop W2 Ponta Delgada, Azores, Malheiro, A. M., & Nunes, J. C. (2019). Volcanic rocks: Proceedings of the International Workshop on Volcanic Rocks, Workshop W2 : 11th Congress ISRM, Ponta Delgada, Azores, Portugal, 14-15 July 2007. Taylor & Francis.
Chicago-viite (17. p.)International Workshop On Volcanic Rocks, Workshop W2 Ponta Delgada, Azores, Ana Maria Malheiro, ja João Carlos Nunes. Volcanic Rocks: Proceedings of the International Workshop on Volcanic Rocks, Workshop W2 : 11th Congress ISRM, Ponta Delgada, Azores, Portugal, 14-15 July 2007. London: Taylor & Francis, 2019.
MLA-viite (9. p.)International Workshop On Volcanic Rocks, Workshop W2 Ponta Delgada, Azores, et al. Volcanic Rocks: Proceedings of the International Workshop on Volcanic Rocks, Workshop W2 : 11th Congress ISRM, Ponta Delgada, Azores, Portugal, 14-15 July 2007. Taylor & Francis, 2019.