Cita APA (7th ed.)

ProQuest (Firm) & Smith, V. L. (2013). Economics of natural & environmental resources. Routledge.

Cita Chicago (17th ed.)

ProQuest (Firm) i Vernon L. Smith. Economics of Natural & Environmental Resources. Oxfordshire, England ; New York: Routledge, 2013.

Cita MLA (9th ed.)

ProQuest (Firm) i Vernon L. Smith. Economics of Natural & Environmental Resources. Routledge, 2013.