TY  - GEN
AU  - Goodspecd, Thomas Harper
TI  - Genus niotiana : origins, relationships, and evolution of its species in the light of thier distribution, morphology and cytogenetics
U1  - 633.71 GOO 
CY  - USA, Waltham, mass
KW  - Genus niotiana/ nicotiana - geographical distribution
ER  -