FIELD, B. C. (2017). Environmental economics: An introduction 7th ed./ Barry C. Field dan Martha K. Field. Mc GrawHill.
Citación estilo ChicagoFIELD, Barry C. Environmental Economics: An Introduction 7th Ed./ Barry C. Field Dan Martha K. Field. Mc GrawHill, 2017.
Cita MLAFIELD, Barry C. Environmental Economics: An Introduction 7th Ed./ Barry C. Field Dan Martha K. Field. Mc GrawHill, 2017.
Warning: These citations may not always be 100% accurate.