Gaya APA

Luxmoore, R, J. (1991). Journal Soil science society of America (Vol. 55,--No. 2). Amerika: The Soil science society of America Inc.

Gaya MLA

Luxmoore, Robert, J.. "Journal Soil science society of America". Vol. 55,--No. 2 Amerika: The Soil science society of America Inc, 1991. 1.