SStudies on African ApocynaceaeStudies on African Apocynaceaede F. K. KupichaEdiciones (4)Studies on African Apocynaceae (1982)inglésStudies on African Apocynaceae (1981)inglésStudies on African Apocynaceae (1981)inglésStudies on African Apocynaceae (1980)inglésMás obras de F. K. KupichaTTribe 21Tribe 21TTribe 22Tribe 22RReport on work as B. A. Krukoff curator of African botany, AReport on work as B. A. Krukoff curator of African botany, April 1980
RReport on work as B. A. Krukoff curator of African botany, AReport on work as B. A. Krukoff curator of African botany, April 1980