Grobler, P., & trad. Isabel Maria van Calker, P. v. C. (2006). Só um golinho, rã! Ana Paula Faria.
Lua i Stíl Chicago (17ú heag.)Grobler, Piet, agus Peter van Calker trad. Isabel Maria van Calker. Só Um Golinho, Rã! Ana Paula Faria, 2006.
Lua MLA (8ú heag.)Grobler, Piet, agus Peter van Calker trad. Isabel Maria van Calker. Só Um Golinho, Rã! Ana Paula Faria, 2006.
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