Illick, J. S., & Aughanbaugh, J. E. (1930). Pitch pine in Pennsylvania. Dept. of Forests and Waters.
Chicagoスタイル(17版)引用形式Illick, Joseph S., , John E. Aughanbaugh. Pitch Pine in Pennsylvania. Harrisburg, Pa.: Dept. of Forests and Waters, 1930.
MLA(8版)引用形式Illick, Joseph S., , John E. Aughanbaugh. Pitch Pine in Pennsylvania. Dept. of Forests and Waters, 1930.
警告: この引用は必ずしも正確ではありません.