APA (7th ed.) Citation

HALM, G. N. (1971). Economics Systems. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

HALM, George N. Economics Systems. Holt, Rinehart and Winston, 1971.

MLA (8th ed.) Citation

HALM, George N. Economics Systems. Holt, Rinehart and Winston, 1971.

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