APA (7th ed.) Citation

Wells, H. G., & Wells, G. P. (1968). The last books of H. G. Wells. H. G. Wells Society.

Chicago Style (17th ed.) Citation

Wells, H. G., and G. P. Wells. The Last Books of H. G. Wells. London: H. G. Wells Society, 1968.

MLA (9th ed.) Citation

Wells, H. G., and G. P. Wells. The Last Books of H. G. Wells. H. G. Wells Society, 1968.