Cita APA (7a ed.)

Carrera, M. G., & Maletz, J. (2010). Ordovician sponge spicules from Spitsbergen, Nevada and Newfoundland: New evidence for the Hexactinellida early differentiation.

Cita Chicago Style (17a ed.)

Carrera, Marcelo G., y J. Maletz. Ordovician Sponge Spicules from Spitsbergen, Nevada and Newfoundland: New Evidence for the Hexactinellida Early Differentiation. 2010.

Cita MLA (8a ed.)

Carrera, Marcelo G., y J. Maletz. Ordovician Sponge Spicules from Spitsbergen, Nevada and Newfoundland: New Evidence for the Hexactinellida Early Differentiation. 2010.