International Congress of the History of Science, Opsomer, C., & Vandersmissen, J. (1997). XXth International Congress of History of Science: : Liège (Belgium) 20 - 26 July 1997. Liége: Centre d.
Cita MLA (8 ed.) (Copiar al portapapeles)International Congress of the History of Science, Carmelia Opsomer, and Jan Vandersmissen. XXth International Congress of History of Science: : Liège (Belgium) 20 - 26 July 1997. Liége: Centre d , 1997.