Gulley. Heads above Water. Texas A&M University Press.
Chicagoスタイル(17版)引用形式Gulley. Heads Above Water. Texas A&M University Press.
MLA(8版)引用形式Gulley. Heads Above Water. Texas A&M University Press.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式