Lytle, R. J. (1978). Farm builder's handbook: With added material for pole type industrial buildings (3rd ed.). Structures Pub. Co..
Cita Chicago Style (17a ed.)Lytle, R. J. Farm Builder's Handbook: With Added Material for Pole Type Industrial Buildings. 3rd ed. Michigan: Structures Pub. Co., 1978.
Cita MLA (8a ed.)Lytle, R. J. Farm Builder's Handbook: With Added Material for Pole Type Industrial Buildings. 3rd ed. Structures Pub. Co., 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.