Stephens. Attracting Birds in the Texas Hill Country. Texas A&M University Press.
Chicagoスタイル(17版)引用形式Stephens. Attracting Birds in the Texas Hill Country. Texas A&M University Press.
MLA(8版)引用形式Stephens. Attracting Birds in the Texas Hill Country. 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.