Schlichting. Grand Central's Engineer. Johns Hopkins University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchlichting. Grand Central's Engineer. Johns Hopkins University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchlichting. Grand Central's Engineer. Johns Hopkins University Press.
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