Opera mathematica,
edidit Andreas Speiser.
APA Citation
Lambert, J. Heinrich., Speiser, A. (1946). Opera mathematica. Turici: Orell Füssli.
MLA Citation
Lambert, Johann Heinrich, 1728-1777, and Andreas Speiser. Opera Mathematica. Turici: Orell Füssli, 1946.
Warning: These citations may not always be complete (especially for serials).