(1953). Feature java man, P.I. marine, geologic forms in science lectures. Philippine Collegian.
Cita Chicago (17th ed.)"Feature Java Man, P.I. Marine, Geologic Forms in Science Lectures." Philippine Collegian 1953.
Cita MLA (9th ed.)"Feature Java Man, P.I. Marine, Geologic Forms in Science Lectures." Philippine Collegian, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.