Παραπομπή APA

(1979). The star almanac for land surveyors for the year 1980. London: Her Majesty's Stationery Office.

Παραπομπή Chicago Style

The Star Almanac for Land Surveyors for the Year 1980. London: Her Majesty's Stationery Office, 1979.

Παραπομπή MLA

The Star Almanac for Land Surveyors for the Year 1980. London: Her Majesty's Stationery Office, 1979.

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