Cita APA (7a ed.)
Head, K. H. (1994). Manual of soil laboratory testing (3nd ed.). Pentech Press.
Cita Chicago Style (17a ed.)
Head, K. H. Manual of Soil Laboratory Testing. 3nd ed. London: Pentech Press, 1994.
Cita MLA (9a ed.)
Head, K. H. Manual of Soil Laboratory Testing. 3nd ed. Pentech Press, 1994.
Precaución: Estas citas no son 100% exactas.