TY  - GEN
AU  - Hayes, Herbert Kendall
AU  - Immer, Forrest Rhinehart
AU  - Smith, David Clyde
TI  - Methods of plant breeding
T2  - Mc Graw Hill publications in the agricultural series
U1  - 631.53 HAY 
CY  - Newyork, Mc Graw- Hill Book Company Inc
KW  -  plant breeding / Agriculture  plant breeding / genetics  plant breeding
ER  -