Gaya APA

J.R.Landon, . (1984). Booker Tropical Soil manual, A handbook for soil survey and agricultural land eavaliuation in the tropics and subtropics . New York: BOOKER TATE.

Gaya MLA

J.R.Landon, . "Booker Tropical Soil manual, A handbook for soil survey and agricultural land eavaliuation in the tropics and subtropics". New York: BOOKER TATE, 1984. Text.