APA引文

Geological Survey (U.S.). (1977). Mt. Spokane quadrangle, Washington--Idaho: 7.5 minute series (topographic), NE/4 Mt. Spokane 15ʹ quadrangle. The Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Mt. Spokane Quadrangle, Washington--Idaho: 7.5 Minute Series (topographic), NE/4 Mt. Spokane 15ʹ Quadrangle. Denver, Colo.: The Geological Survey, 1977.

MLA引文

Geological Survey (U.S.). Mt. Spokane Quadrangle, Washington--Idaho: 7.5 Minute Series (topographic), NE/4 Mt. Spokane 15ʹ Quadrangle. The Geological Survey, 1977.

警告：這些引文格式不一定是100％准確.