Gaya APA
O\'keefe, J, A. (1976).
Developments in Petrology 4: tektites & their origin .
Amsterdam:
Elsevier Scientific Pub. Co..
Gaya MLA
O\'keefe, John, A..
"Developments in Petrology 4: tektites & their origin".
Amsterdam:
Elsevier Scientific Pub. Co.,
1976.
Text.