[Medical manual and prescriptions] ... [etc.].

MLA

Gentilis Fulginas, et al. [Medical manual and prescriptions] ... [etc.]. [Italy], [circa 1350-1499]

APA

Gentilis Fulginas, Dinus, Avigdor, S., Alberti, B. & Lawrence J. Schoenberg Collection (University of Pennsylvania). (1350). [Medical manual and prescriptions] ... [etc.]. [Italy].

Chicago

Gentilis Fulginas, Dinus, Solomon ben Abraham Avigdor, Bernardo. Alberti and Lawrence J. Schoenberg Collection (University of Pennsylvania). [Medical manual and prescriptions] ... [etc.]. [Italy], [circa 1350-1499]