Unbalanced somatic chromosomal variation in Crepis Navashin, M. S. (Mikhail Sergeevich) creator text book Berkeley, Calif University of California Press 1930 1930
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ENG Each plate accompanied by leaf with descriptive letterpress. Cover title. Chromosomes Crepis 581.17 University of California publications in agricultural sciences, v. 6, no. 3 https://www.biodiversitylibrary.org/bibliography/61377 a30000608 10.5962/bhl.title.61377 California. Univ. Libr.