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西瓜早熟栽培/中央农业广播电视学校主编;郑世杰等编写.-北京:农业出版社,1993.7.-118页;19cm.农村实用技术培训教材.-ISBN 7-109-02983-2:2.50元西瓜高新栽培技术/蒋有条等编著.-北京:农业出版社,1993.8.-192页;19cm.-(西瓜甜瓜最新实用
Watermelon precocious cultivation / Central Agricultural Broadcasting and Television School editor; Zheng Shijie and other preparation.- Beijing: Agricultural Press, 1993.7.-118 pages; 19cm. Rural practical training materials.-ISBN 7-109-02983-2: 2.50 yuan Watermelon high-tech Cultivation techniques / Jiang Youzai and other editors .- Beijing: Agricultural Press, 1993.8.-192 pages; 19cm .- (watermelon melon latest practical