Henry Arthur Ballou
The Pink Boll Worm (Gelechia, Gossypiella, Saunders) in Egypt in 1916-1917 - Cairo Government Press 1920 - vii, 120 28 cm
1920
English
General
The Pink Boll Worm (Gelechia, Gossypiella, Saunders) in Egypt in 1916-1917 - Cairo Government Press 1920 - vii, 120 28 cm
1920
English
General