1.
 |  | Title: The Doula Book: How a Trained Labor Companion Can Help You Have a Shorter, Easier, and Healthier Birth by Marshall H., M.D. Klaus, John H., M.D. Kennell, Phyllis H. Klaus, Marshall H. Klaus, John H. Kennell ISBN: 0738206091 Publisher: Perseus Publishing Pub. Date: 05 November, 2002 List Price: $19.00 Amazon.com Price: $13.30 |
2.
 |  | Title: Mothering the Mother: How a Doula Can Help You Have a Shorter, Easier, and Healthier Birth by Marshall H. Klaus, Phyllis H. Klaus, John Kennell ISBN: 0201632721 Publisher: Perseus Publishing Pub. Date: March, 1993 List Price: $18.00 Amazon.com Price: $18.00 |
3.
 |  | Title: Bonding: Building the Foundations of Secure Attachment and Independence by Marshall H. Klaus, John H. Kennell, Phyllis H. Klaus, Phyllis Kalus ISBN: 0201441985 Publisher: Perseus Publishing Pub. Date: January, 2000 List Price: $17.50 Amazon.com Price: $17.50 |
4.
 |  | Title: Bonding: The Beginning of Parent-Infant Attachment by Marshall H., M.D. Klaus, John H., M.D. Kennell ISBN: 080162696X Publisher: Mosby Pub. Date: April, 1983 List Price: $7.95 Amazon.com Price: $7.95 |