Mga kaalaman tungkol sa kalendaryo od Lawagan, Ernesto

Time in world history od Stearns, Peter N.

Keeping track...day by day od Daza, Julie Y.

Keeping track...counting the days. IN Meduim Rare [column] od Daza, Julie Y.

Seasonal customs of Korea od Shaffer, David E.

The Oxford companion to the year od Blackburn, Bonnie J.

Questioning the millennium a rationalist's guide to a precisely arbitrary countdown od Gould, Stephen Jay

Calendars and constellations of the ancient world od Plunket, Emmeline

Calendars and constellations of the ancient world od Plunket, Emmeline M. b. 1835

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[Virgin Mary].