(1997). Natural resources development: Focus: tropical. Gernamy: The institute for Scientific Co-operation.
Chicago Style citaatNatural Resources Development: Focus: Tropical. Gernamy: The institute for Scientific Co-operation, 1997.
MLA citatieNatural Resources Development: Focus: Tropical. Gernamy: The institute for Scientific Co-operation, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.