TY  - BOOK
AU  - Johansen,Donald Alexander
TI  - Plant embryology: embryogeny of the spermatophyta
T2  - A New series of plant science books
AV  - QK665 .J6
U1  - 581.3 
PY  - 1950///]
CY  - Waltham, Mass.
PB  - Chronica Botanica Co.
KW  - Botany
KW  - Embryology
KW  - Local
N1  - Includes bibliographies
ER  -