^ John Barrett , ed. (1975). World of Tennis '75: a BP and Commercial Union yearbook . Londres: Queen Anne Press. pág. 143. ISBN9780362002171.
^ John Barrett , ed. (1976). World of Tennis '76: a BP and Commercial Union yearbook . Londres: Queen Anne Press. pág. 149. ISBN9780362002768.OCLC 650229036 .
^ John Barrett , ed. (1977). World of Tennis 1977: a BP yearbook . Londres: Macdonald and Janes. pág. 144. ISBN9780354090117.