Wingfield, L. A., & Sparkes, R. B. (1928). The law in relation to aircraft. Longmans, Green.
Lua i Stíl Chicago (17ú heag.)Wingfield, L. A., agus R. B. Sparkes. The Law in Relation to Aircraft. London: Longmans, Green, 1928.
Lua MLA (8ú heag.)Wingfield, L. A., agus R. B. Sparkes. The Law in Relation to Aircraft. Longmans, Green, 1928.
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