Alfred, Eric R. The fresh-water fishes of Singapore / by Eric R. Alfred - Leiden : E. J. Brill, 1966 - 68 p., : ill. 8 p. of plates ; 25 cm. - Zoologische verhandelingen no. 78 . Subjects--Topical Terms: Fishes, Fresh--water--Singapore Subjects--Geographic Terms: Singapore--Fishes, Fresh--water