APA Citation

Allen, R. G. D., & Allen, R. G. D. (1965). Economia matematica. Madrid.

Chicago Style Citation

Allen, Roy George Douglas, and Roy George Douglas Allen. Economia Matematica. Madrid, 1965.

MLA Citation

Allen, Roy George Douglas, and Roy George Douglas Allen. Economia Matematica. Madrid, 1965.

Warning: These citations may not always be 100% accurate.