Gaya APA
TRIPP, Robert, Jonathan Woolley. (1989).
The planning stage of on-farm research : identifying factors for experimentation .
Mexico:
Cimmyt.
Gaya Chicago
TRIPP, Robert, Jonathan Woolley.
The planning stage of on-farm research : identifying factors for experimentation.
Mexico:
Cimmyt,
1989.
Text.
Gaya MLA
TRIPP, Robert, Jonathan Woolley.
The planning stage of on-farm research : identifying factors for experimentation.
Mexico:
Cimmyt,
1989.
Text.
Gaya Turabian
TRIPP, Robert, Jonathan Woolley.
The planning stage of on-farm research : identifying factors for experimentation.
Mexico:
Cimmyt,
1989.
Print.