C. A. Clarke & P. M. Sheppard (1971). "Further studies on the genetics of the mimetic butterfly Papilio memnon L.". Philosophical Transactions of the Royal Society B. 263 (847): 35–70. Bibcode:1971RSPTB.263...35C. doi:10.1098/rstb.1971.0109. JSTOR2417186.
C. A. Clarke & P. M. Sheppard (1971). "Further studies on the genetics of the mimetic butterfly Papilio memnon L.". Philosophical Transactions of the Royal Society B. 263 (847): 35–70. Bibcode:1971RSPTB.263...35C. doi:10.1098/rstb.1971.0109. JSTOR2417186.
C. A. Clarke & P. M. Sheppard (1971). "Further studies on the genetics of the mimetic butterfly Papilio memnon L.". Philosophical Transactions of the Royal Society B. 263 (847): 35–70. Bibcode:1971RSPTB.263...35C. doi:10.1098/rstb.1971.0109. JSTOR2417186.