APA-viite (7. p.)
Riber, J. Yellow Card: Sex, soccer and life's little secrets.... Media for Development Trust.
Chicago-viite (17. p.)
Riber, John. Yellow Card: Sex, Soccer and Life's Little Secrets.... Harare, Zimbabwe: Media for Development Trust.
MLA-viite (9. p.)
Riber, John. Yellow Card: Sex, Soccer and Life's Little Secrets.... Media for Development Trust.
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