Παραπομπή APA

Aston,S.R, & Aston, S. R. (1983). Silicon geochemistry and biogeochemistry. Academic Press.

Παραπομπή Chicago Style

Aston,S.R, και S. R. Aston. Silicon Geochemistry and Biogeochemistry. London ; New York: Academic Press, 1983.

Παραπομπή MLA

Aston,S.R, και S. R. Aston. Silicon Geochemistry and Biogeochemistry. Academic Press, 1983.