CHAPTER 2: Fundamental Concepts of Object-Oriented Languages: 2.4 Covariant and contravariant changes in types.

MLA

Bruce, Kim B. “CHAPTER 2: Fundamental Concepts of Object-Oriented Languages: 2.4 Covariant and Contravariant Changes in Types.” Foundations of Object-Oriented Languages (9780262255851), Jan. 2002, pp. 26–27. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=99352603&authtype=sso&custid=ns315887.

APA

Bruce, K. B. (2002). CHAPTER 2: Fundamental Concepts of Object-Oriented Languages: 2.4 Covariant and contravariant changes in types. Foundations of Object-Oriented Languages (9780262255851), 26–27.

Chicago

Bruce, Kim B. 2002. “CHAPTER 2: Fundamental Concepts of Object-Oriented Languages: 2.4 Covariant and Contravariant Changes in Types.” Foundations of Object-Oriented Languages (9780262255851), January, 26–27. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edb&AN=99352603&authtype=sso&custid=ns315887.