@PROCEEDINGS {HAHN:1978f,
title = {The Improvement of Cassava and Sweet Potato through Breeding},
booktitle = {Paper presented at the IITA/IDRC/MANR/RRS Regional Root and Tuber Crops Improvement Workshop, August 28 - 30, 1978},
year = {1978},
month = {August},
address = {Freetown, Sierra Leone},
note = {RTB; Root and Tuber},
}