Lyford, W. H., & Troedsson, T. (1973). Fragipan horizons in soils on moraines near Garpenberg, Sweden =: "Fragipan"-horisonter i moränen i Garpenberg. Royal College of Forestry.
Chicago Style (17th ed.) CitationLyford, Walter Henry, and Tryggve Troedsson. Fragipan Horizons in Soils on Moraines Near Garpenberg, Sweden =: "Fragipan"-horisonter I Moränen I Garpenberg. Stockholm: Royal College of Forestry, 1973.
MLA引文Lyford, Walter Henry, and Tryggve Troedsson. Fragipan Horizons in Soils on Moraines Near Garpenberg, Sweden =: "Fragipan"-horisonter I Moränen I Garpenberg. Royal College of Forestry, 1973.
警告：这些引文格式不一定是100％准确.