Grigson, G. (1957). The Shell nature studies : fossils, insects and reptiles: Fossils, insects and reptiles. Phoenix House.
Chicago Style (17th ed.) CitationGrigson, Geoffrey. The Shell Nature Studies : Fossils, Insects and Reptiles: Fossils, Insects and Reptiles. London: Phoenix House, 1957.
MLA (9th ed.) CitationGrigson, Geoffrey. The Shell Nature Studies : Fossils, Insects and Reptiles: Fossils, Insects and Reptiles. Phoenix House, 1957.
Warning: These citations may not always be 100% accurate.