Cita APA

Hardi, P., & Zdan, T. (1997). Assessing sustainable development: Principles in practice. Canadá: The Institute for Consciousness Research.

Citación estilo Chicago

Hardi, Peter, y Terrence Zdan. Assessing Sustainable Development: Principles in Practice. Canadá: The Institute for Consciousness Research, 1997.

Cita MLA

Hardi, Peter, y Terrence Zdan. Assessing Sustainable Development: Principles in Practice. Canadá: The Institute for Consciousness Research, 1997.