APA
Wehrman S. F., . (2009). Workbook for Egan's fundamentals of respiratory care. St. Louis, MO: Mosby, Inc., an affiliate of Elsevier Inc.
Chicago
Wehrman Stephen F, . 2009. Workbook for Egan's fundamentals of respiratory care. St. Louis, MO: Mosby, Inc., an affiliate of Elsevier Inc.
Harvard
Wehrman S. F., . (2009). Workbook for Egan's fundamentals of respiratory care. St. Louis, MO: Mosby, Inc., an affiliate of Elsevier Inc.
MLA
Wehrman Stephen F, . Workbook for Egan's fundamentals of respiratory care. St. Louis, MO: Mosby, Inc., an affiliate of Elsevier Inc. 2009.