Topping, J. (1972). Errors of observation and their treatment (4th ed.). Chapman Hall.
Tohutoru Kātū Chicago (17th ed.)Topping, J. Errors of Observation and Their Treatment. 4th ed. London: Chapman Hall, 1972.
Tohutoro MLA (9th ed.)Topping, J. Errors of Observation and Their Treatment. 4th ed. Chapman Hall, 1972.
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