Tohutoro APA (7th ed.)

Bourke, R. M. (1982). Sweet potato in Papua New Guinea. Highlands Agricultural Experiment Station.

Tohutoru Kātū Chicago

Bourke, Richard Michael. Sweet Potato in Papua New Guinea. Kainantu: Highlands Agricultural Experiment Station, 1982.

Tohutoro MLA

Bourke, Richard Michael. Sweet Potato in Papua New Guinea. Highlands Agricultural Experiment Station, 1982.

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