Stewart, P. (1963). Meteorology unit. Encyclopaedia Britannica Educational Corporation.
Cita Chicago (17th ed.)Stewart, P.E. Meteorology Unit. Chicago: Encyclopaedia Britannica Educational Corporation, 1963.
Cita MLA (9th ed.)Stewart, P.E. Meteorology Unit. Encyclopaedia Britannica Educational Corporation, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.