1. ‘The Staple Food Economies of Western Tropical Africa’, 1958, pp. 112–116, 145–147, 173–174 (Stanford Univ. Press)
2. National Economic Council, ‘Economic Survey of Nigeria, 1959’, pp. 22–26 (Federal Government Printer: Lagos, Nigeria)
3. ‘A Textbook of West African Agriculture’, 1957, pp. 126–9 (Oxford University Press)
4. ‘Yam Culture in Porto Rico’, Bull. Porto Rico agric. Exp. Sta., No. 27