Cita APA (7a ed.)

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.

Cita Chicago Style (17a ed.)

Lyford, Walter Henry, y Tryggve Troedsson. Fragipan Horizons in Soils on Moraines Near Garpenberg, Sweden =: "Fragipan"-horisonter I Moränen I Garpenberg. Stockholm: Royal College of Forestry, 1973.

Cita MLA (8a ed.)

Lyford, Walter Henry, y Tryggve Troedsson. Fragipan Horizons in Soils on Moraines Near Garpenberg, Sweden =: "Fragipan"-horisonter I Moränen I Garpenberg. Royal College of Forestry, 1973.