APA
Parikh K., Gulbrandsen O., Frohberg K. & Fischer G. (1988). Towards free trade In agriculture. : Martinus Nijhoff Publisher.
Chicago
Parikh K.S, Gulbrandsen O, Frohberg K and Fischer G. 1988. Towards free trade In agriculture. : Martinus Nijhoff Publisher.
Harvard
Parikh K., Gulbrandsen O., Frohberg K. and Fischer G. (1988). Towards free trade In agriculture. : Martinus Nijhoff Publisher.
MLA
Parikh K.S, Gulbrandsen O, Frohberg K and Fischer G. Towards free trade In agriculture. : Martinus Nijhoff Publisher. 1988.