APA

Okorji E Ch, Aghimien Christopher I, . (1986). Cost return analysis of the substitution of food crops for rubber in the smallholder cropping system of Southern Nigeria: A case study of Bendel state. : Quarterly Journal of International Agriculture.

Chicago

Okorji E Ch, Aghimien Christopher I, . 1986. Cost return analysis of the substitution of food crops for rubber in the smallholder cropping system of Southern Nigeria: A case study of Bendel state. : Quarterly Journal of International Agriculture.

Harvard

Okorji E Ch, Aghimien Christopher I, . (1986). Cost return analysis of the substitution of food crops for rubber in the smallholder cropping system of Southern Nigeria: A case study of Bendel state. : Quarterly Journal of International Agriculture.

MLA

Okorji E Ch, Aghimien Christopher I, . Cost return analysis of the substitution of food crops for rubber in the smallholder cropping system of Southern Nigeria: A case study of Bendel state. : Quarterly Journal of International Agriculture. 1986.