Cita APA (7th ed.)

Lewis, W. (1970). Overhead costs (3rd.). Unwin Univ.

Cita Chicago (17th ed.)

Lewis, W. Overhead Costs. 3rd. London: Unwin Univ, 1970.

Cita MLA (9th ed.)

Lewis, W. Overhead Costs. 3rd. Unwin Univ, 1970.