Watson, J. H., & Nicholas Meyer [ed.]. (1975). Seven percent solution. Hodder and Stoughton.
Chicago Edition CitationWatson, John H., i Nicholas Meyer [ed.]. Seven Percent Solution. London: Hodder and Stoughton, 1975.
Cita MLAWatson, John H., i Nicholas Meyer [ed.]. Seven Percent Solution. Hodder and Stoughton, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.