(1972). Flow chart of the tropical waler balance model. Amsterdam : Elsevier Scientific.
Chicago-čujuhus (17. p.)Flow Chart of the Tropical Waler Balance Model. Amsterdam : Elsevier Scientific, 1972.
MLA-čujuhus (9. p.)Flow Chart of the Tropical Waler Balance Model. Amsterdam : Elsevier Scientific, 1972.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.