NAMOWITZ, S. N. (1965). Earth science; the world we live in. Van Nostrand.
Cita Chicago (17th ed.)NAMOWITZ, Samuel N. Earth Science; the World We Live in. Princeton: Van Nostrand, 1965.
Cita MLA (9th ed.)NAMOWITZ, Samuel N. Earth Science; the World We Live in. Van Nostrand, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.