Gaya APA
Ahrens, L., Press, F, (.
(1961).
Physics and Chemistry of the Earth Vol. 4
.
London:
Pergamon Press.
Gaya MLA
Ahrens, L.H., Press, Frank, (a.o).
"Physics and Chemistry of the Earth Vol. 4".
London:
Pergamon Press,
1961.
Text.