APA aipamena

Wong, R. (1990). Ruth Wong's unto each child the best. PG Publishing Pte.

Chicago Style aipamena

Wong, Ruth. Ruth Wong's Unto Each Child the Best. Singapore: PG Publishing Pte, 1990.

MLA aipamena

Wong, Ruth. Ruth Wong's Unto Each Child the Best. PG Publishing Pte, 1990.