You may have students asking for "Perceived Parental Attachment and Achievement Motivation" by M. Bal and Imants Baruss. The professor who made the assignment apparently did not provide any additional bibliographical information. The article is available only in print in Psychological Reports. It is in the December 2011 issue which is v.109 number 3 on page 940. It is shelved in the current periodicals area, but will likely wander. Although Psychological Reports is indexed in PsycInfo this particular issue has not yet been added.