Report on marine atmosphere exposure of galvanic couples involving magnesium,

Mode of access: Internet.

Lovers, from a Picture-book Models of Couples (Ehon tsuhi no hinagata)

Katsushika Hokusai; 10 7/16 in.x 1 ft. 3 23/64 in.; woodcut on paper

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: detail

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples, Couples in Bubble Flower

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: Topsy-Turvy Man

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: detail

Hieronymus Bosch; grisaille, oil on wood

First premarital cohabitation in the United States: 2006-2010 National Survey of Family Growth /

Mode of access: Internet.

Elegant Couples Courting

Willem Pietersz. Buytewech; 1 ft. 10 11/64 in.x 2 ft. 3 3/4 in.; oil on canvas

Réflexions sur la métaphysique du calcul infinitésimal /

Mode of access: Internet.

Problèmes d'algèbre et exercices de calcul algébrique avec les solutions /

Mode of access: Internet.

Problèmes d'algèbre et exercices de calcul algèbrique avec les solutions /

Mode of access: Internet.

Traité de calcul différentiel et de calcul intégral.

Mode of access: Internet.

De l'analyse infinitésimale étude sur la métaphysique du haut calcul /

Mode of access: Internet.