Beer, J. (1987). Advantages, disadvantages and desirable characteristics of shade trees for coffee, cacao and tea.
Chicago-stil citatBeer, John. Advantages, Disadvantages and Desirable Characteristics of Shade Trees for Coffee, Cacao and Tea. 1987.
MLA-referensBeer, John. Advantages, Disadvantages and Desirable Characteristics of Shade Trees for Coffee, Cacao and Tea. 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.