Estupigan, R. (1998). Planning the nursery: What every nursery should have. Manila Bulletin.
Cita Chicago (17th ed.)Estupigan, Ruth. "Planning the Nursery: What Every Nursery Should Have." Manila Bulletin 1998.
Cita MLA (9th ed.)Estupigan, Ruth. "Planning the Nursery: What Every Nursery Should Have." Manila Bulletin, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.