APA (7th ed.) Citation

Lawrence, F. C., & Humphreys, E. N. (1967). Marginal costing (2nd ed.). Macdonald & Evans.

Chicago Style (17th ed.) Citation

Lawrence, F. C., and E. N. Humphreys. Marginal Costing. 2nd ed. London: Macdonald & Evans, 1967.

MLA (9th ed.) Citation

Lawrence, F. C., and E. N. Humphreys. Marginal Costing. 2nd ed. Macdonald & Evans, 1967.