APA

Hutchinson M. T., Nelson E. G. & Hesser L. F. (1975). Roster of scientists : for the major food crops of the developing world. Washington: Office of Agriculture Technical Assistance Bureau Angency for International Development.

Chicago

Hutchinson Martin T, Nelson Elton G and Hesser Leon F. 1975. Roster of scientists : for the major food crops of the developing world. Washington: Office of Agriculture Technical Assistance Bureau Angency for International Development.

Harvard

Hutchinson M. T., Nelson E. G. and Hesser L. F. (1975). Roster of scientists : for the major food crops of the developing world. Washington: Office of Agriculture Technical Assistance Bureau Angency for International Development.

MLA

Hutchinson Martin T, Nelson Elton G and Hesser Leon F. Roster of scientists : for the major food crops of the developing world. Washington: Office of Agriculture Technical Assistance Bureau Angency for International Development. 1975.