APA-čujuhus (7. p.)

Library, 1. L. I. I. Surveying: Theory and practice. Philadelphia, Pa. : Lefax.

Chicago-čujuhus (17. p.)

Library, 11674 Lefax Instant Information. Surveying: Theory and Practice. Philadelphia, Pa. : Lefax.

MLA-čujuhus (9. p.)

Library, 11674 Lefax Instant Information. Surveying: Theory and Practice. Philadelphia, Pa. : Lefax.

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