Gaya APA

Davey, L., Houghton, D. (2013). The Middwife's Pocket Formulary (3). United States of America: Churchill Livingstone.

Gaya MLA

Davey, Liz., Houghton, Debbee. "The Middwife's Pocket Formulary". 3 United States of America: Churchill Livingstone, 2013. Text.