Reference

Cleveland historical articles with a multimedia search

A collaboratively written mathematics encyclopedia

Research reference on pharmacological targets and ligands

Older literary works available as free ebooks

Biographical reference across the German-speaking world

French dictionary and encyclopedia reference

Academic reference guidance on using sources in papers

Discover linked publications, datasets and research software

Mathematician biographies and historical essays

Australian scientific history connected to archival sources

Drug-reference lookup by name and classification

Amphibian reference with species and geography searches

Scientific-literature search with an augmented reading feature

Classic Christian works browsable by author and genre

A research library for Prabhupada's teachings

Pali-canon translations with several routes into the text

English dictionary lookup with explicit usage guidance

A subject-organized reference to Alabama

Discover peer-reviewed open-access books and publishers

Official MLA guidance on writing and documentation

A shared search across Mountain West historical collections

A global bird classification with English naming guidelines

English meanings connected to examples and related words

Articles, maps and timelines on Jewish history and culture