Keller, C. U. Field Guide to Astronomical Instrumentation. SPIE Digital Library.
Chicagoスタイル(17版)引用形式Keller, Christoph U. Field Guide to Astronomical Instrumentation. SPIE Digital Library.
MLA(9版)引用形式Keller, Christoph U. Field Guide to Astronomical Instrumentation. SPIE Digital Library.
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