TY - BOOK AU - Babbar S B AU - Gupta S C Gu. AU - University of Delhi. Faculty of Science. Department of Botany ED - University of Delhi. Faculty of Science. Department of Botany TI - Studies in vitro aprophytic development of pollen in some angiosperms PY - 1982/// CY - Delhi PB - University of Delhi India KW - BOTANY ER -