Cita APA (7th ed.)

Sneddon, I. N. (1957). Elements of Partial Differential Equations (International ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Sneddon, Ian Naismith. Elements of Partial Differential Equations. International ed. New York: McGraw-Hill, 1957.

Cita MLA (9th ed.)

Sneddon, Ian Naismith. Elements of Partial Differential Equations. International ed. McGraw-Hill, 1957.