Cita APA (7th ed.)

Rapp , D. . .. (1991). Solar energy. Prentice _ Hall.

Cita Chicago (17th ed.)

Rapp , Donald. Solar Energy. Englewood Cliffs , N. J.: Prentice _ Hall, 1991.

Cita MLA (9th ed.)

Rapp , Donald. Solar Energy. Prentice _ Hall, 1991.

Atenció: Aquestes cites poden no estar 100% correctes.