Skip to content

Sections

Maps Timeline Graph Cosmos Life Culture Innovation People Climate Trends Art

Browse Dictionary Books Food Places Asteroids Exoplanets Artists Albums Gazetteer Search

Home
Books
Position finding by the improved "Sumner" method

Position finding by the improved "Sumner" method

by Harold S. Blackburne

Cover of Position finding by the improved "Sumner" method

No description available.

TablesSumner methodNavigation

View on OpenLibrary ↗ · data from Open Library (CC0)

© 2026 Vinony · Knowledge from Wikipedia, Wikidata, and 27 public APIs.