APA (7th ed.) Citation

Gehlsen, C. A. (1940). World rubber production and trade: Economic and technical aspects ; 1935-1939. Internat. Inst. of Agriculture.

Chicago Style (17th ed.) Citation

Gehlsen, Conrad August. World Rubber Production and Trade: Economic and Technical Aspects ; 1935-1939. Rome: Internat. Inst. of Agriculture, 1940.

MLA (9th ed.) Citation

Gehlsen, Conrad August. World Rubber Production and Trade: Economic and Technical Aspects ; 1935-1939. Internat. Inst. of Agriculture, 1940.

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