The Oxford system of decimal classification for forestry;
being the definitive English version as authorized by the Rome Congress of the International Union of Forest Research Organizations, Sept. 1953, and published on their behalf by the Commonwealth Agricultural Bureaux.

APA Citation

International Union of Forestry Research Organizations. (1966). The Oxford system of decimal classification for forestry. [Farnham Royal, Eng.: Commonwealth Agricultural Bureaux].

MLA Citation

International Union of Forestry Research Organizations. The Oxford System of Decimal Classification for Forestry. [Farnham Royal, Eng.: Commonwealth Agricultural Bureaux], 1966.

Warning: These citations may not always be complete (especially for serials).