Não informado. (2001). Beach and pool and swimming. Hoffman-Harris.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Beach and Pool and Swimming. New York: Hoffman-Harris, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Beach and Pool and Swimming. Hoffman-Harris, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.