ROBERTS, H. F. (1965). Plant hybridisation before Mendel. Hafner publishing company.
Chicago Edition CitationROBERTS, H F. Plant Hybridisation Before Mendel. Newyork: Hafner publishing company, 1965.
MLA Edition CitationROBERTS, H F. Plant Hybridisation Before Mendel. Hafner publishing company, 1965.
Warning: These citations may not always be 100% accurate.