Harkness, C., McDonald, D., Elston, J. The effects of cercospora leaf disease on the growth of groundnuts (Arachis hypogea) in Nigeria. Zaria: 1976 39-51 p. : ill.
Harkness, C., McDonald, D., Elston, J. The effects of cercospora leaf disease on the growth of groundnuts (Arachis hypogea) in Nigeria. Zaria: 1976 39-51 p. : ill.
Harkness, C., McDonald, D., Elston, J. (1976) The effects of cercospora leaf disease on the growth of groundnuts (Arachis hypogea) in Nigeria, Zaria: 39-51 p. : ill.
Harkness, C., McDonald, D., & Elston, J. (1976). The effects of cercospora leaf disease on the growth of groundnuts (Arachis hypogea) in Nigeria. Zaria: 39-51 p. : ill.
Harkness C, McDonald D, Elston J. The effects of cercospora leaf disease on the growth of groundnuts (Arachis hypogea) in Nigeria. Zaria: 1976. p. 39-51 p. : ill.