Dyfyniad APA

International rice testing program. (1982). Preliminary report of 1981 IRTP nurseries. Manila: The internatonal rice testing program.

Dyfyniad Arddull Chicago

International rice testing program. Preliminary Report of 1981 IRTP Nurseries. Manila: The internatonal rice testing program, 1982.

Dyfyniad MLA

International rice testing program. Preliminary Report of 1981 IRTP Nurseries. Manila: The internatonal rice testing program, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.