Are Ladybugs Helpful Insects?
- 期刊名称Science Activities: Classroom Projects and Curriculum Ideas
- 作者Persky, Barry Stephen; Kaplan, Burton
- 卷第2卷
- 期第4期
- 印刷ISSN0036-8121
- 电子ISSN1940-1302
- 文件大小1305.70KB
- 发表时间1969-12
- DOI10.1080/00368121.1969.9958133
- 页码15-18
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