Cita APA (7a ed.)

Johnston, P., & Lee, D. (1985). Mathematics for social scientists. [s.n.].

Cita Chicago Style (17a ed.)

Johnston, Peter, y David Lee. Mathematics for Social Scientists. [S.l.]: [s.n.], 1985.

Cita MLA (9a ed.)

Johnston, Peter, y David Lee. Mathematics for Social Scientists. [s.n.], 1985.