APA (7th ed.) Citation
Allen, R. G. D. (1967). Economia matematica. Aguilar.
Chicago Style (17th ed.) Citation
Allen, R. G. D. Economia Matematica. Madrid: Aguilar, 1967.
MLA (9th ed.) Citation
Allen, R. G. D. Economia Matematica. Aguilar, 1967.
Warning: These citations may not always be 100% accurate.