Gray, B., & Van Milligen, J. (1991). Tips on making greeting cards. Design Press.
Chicagoスタイル(17版)引用形式Gray, Bill, , Jan Van Milligen. Tips on Making Greeting Cards. New York: Design Press, 1991.
MLA(9版)引用形式Gray, Bill, , Jan Van Milligen. Tips on Making Greeting Cards. Design Press, 1991.
警告: この引用は必ずしも正確ではありません.