Παραπομπή APA

NORMAN,M.J.T,PEARSON,C.J,SEARLE P.G.E. (1995). TROPICAL FOOD CROPS IN THEIR ENVIORMENT (SECOND.). CAMBRIDGE LOW PRICE.

Παραπομπή Chicago Style

NORMAN,M.J.T,PEARSON,C.J,SEARLE P.G.E. TROPICAL FOOD CROPS IN THEIR ENVIORMENT. SECOND. LONDON: CAMBRIDGE LOW PRICE, 1995.

Παραπομπή MLA

NORMAN,M.J.T,PEARSON,C.J,SEARLE P.G.E. TROPICAL FOOD CROPS IN THEIR ENVIORMENT. SECOND. CAMBRIDGE LOW PRICE, 1995.