怎样改造低产冷浸田和白土
By: Zhongguo ke xue yuan tu rang yan jiu suo zhu
Publisher: Ke xue chu ban she
Published: 1959
Place of publication: Beijing
Language: chi
Number of pages: 44
Subjects: Soils; Rice; Reclamation of land
Other titles: Zen yang gai zao di chan leng jin tian he bai tu