APA Style

Robson, S, E., Waugh, J. (2008). Medical Disorders in Pregnancy: A Manual for Midwives ( PDFDrive.com ) . Oxford, UK: Blackwell Pub..

MLA Style

Robson, S., Elizabeth., Waugh, Jason. "Medical Disorders in Pregnancy: A Manual for Midwives ( PDFDrive.com )". Oxford, UK: Blackwell Pub., 2008. Text.