The Doula bookPhyllis H. Klaus, Marshall H. Klaus, John H. Kennell · First published 2002Open the Tome
Das Wunder der ersten Lebenswochen.Marshall H. Klaus, Phyllis H. Klaus · First published 2000Open the Tome
BondingMarshall H. Klaus, John H. Kennell, Phyllis Kalus · First published 1995 · Latest edition 1996Open the Tome
Mothering the MotherMarshall H. Klaus, John Kennell, Phyllis H. Klaus · First published 1993Open the Tome
