APA Edition Citation

Roberts, H. F. (1929). Plant hybridization before mendal. Hafner Publishing Compnay.

Chicago Edition Citation

Roberts, H F. Plant Hybridization Before Mendal. Newyork: Hafner Publishing Compnay, 1929.

MLA Edition Citation

Roberts, H F. Plant Hybridization Before Mendal. Hafner Publishing Compnay, 1929.

Warning: These citations may not always be 100% accurate.