Stahl, J., & Stahl, J. (1971). A Note on the recycling of natural resources. Alberta: University of Calgary Dept of Economics.
Citación estilo ChicagoStahl, J.E., y J.E Stahl. A Note On the Recycling of Natural Resources. Alberta: University of Calgary Dept of Economics, 1971.
Cita MLAStahl, J.E., y J.E Stahl. A Note On the Recycling of Natural Resources. Alberta: University of Calgary Dept of Economics, 1971.
Precaución: Estas citas no son 100% exactas.