John Vandermeer
The ecology of intercropping John Vandermeer - Cambridge Cambridge University press 1989 - 237 p. 22.5 cm
6B1
0 521 34689 4
Agricultural ecology
631.58 / VAN/EL
The ecology of intercropping John Vandermeer - Cambridge Cambridge University press 1989 - 237 p. 22.5 cm
6B1
0 521 34689 4
Agricultural ecology
631.58 / VAN/EL