Hoffman, D. R. (1979). The energy-efficient church How to save energy (and money) in your church. The Pilgrim Press.
Citazione stile Chigago Style (17a edizione)Hoffman, Douglas R. The Energy-efficient Church How to Save Energy (and Money) in Your Church. The Pilgrim Press, 1979.
Citatione MLA (9a ed.)Hoffman, Douglas R. The Energy-efficient Church How to Save Energy (and Money) in Your Church. The Pilgrim Press, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.