U.S. Department of Agriculture. (1980). Proceedings of the conference on nursery production of fruit plants through tissue culture-applications and feasibility. U.S. Department of Agriculture.
Cita Chicago (17th ed.)U.S. Department of Agriculture. Proceedings of the Conference on Nursery Production of Fruit Plants Through Tissue Culture-applications and Feasibility. Washington, D.C: U.S. Department of Agriculture, 1980.
Cita MLA (9th ed.)U.S. Department of Agriculture. Proceedings of the Conference on Nursery Production of Fruit Plants Through Tissue Culture-applications and Feasibility. U.S. Department of Agriculture, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.