Professor's lectures and seminars summaries

1969-1970 - Forty years of tropical geography, a review | Tropical geography, perspectives

1968-1969 - Paysanneries et migrations dans le monde tropical | Techniques et géographie humaine

1967-1968 - Paysanneries tropicales | Causes of the technical and economic backwardness of the tropical world

1966-1967 - Tropical America, geographical realities and development myths | Tropical geography in Asia; some topical issues