Mutation in Matthiola Frost, Howard Brett, 1881-1969 creator text book Berkeley University of California press 1919 1919
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ENG Cover-title. Matthiola Plants Variation University of California publications in agricultural sciences, v. 2, no. 4 https://www.biodiversitylibrary.org/bibliography/61307 a19001523 10.5962/bhl.title.61307 California. Univ. Libr.