APA

Sanchez Sorondo M. e. a., .The Four-hundredth anniversary of the Pontifical Academy of Sciences 1603-2003. Vatican City: .

Chicago

Sanchez Sorondo Marcelo et al, .The Four-hundredth anniversary of the Pontifical Academy of Sciences 1603-2003. Vatican City: .

Harvard

Sanchez Sorondo M. e. a., .The Four-hundredth anniversary of the Pontifical Academy of Sciences 1603-2003. Vatican City: .

MLA

Sanchez Sorondo Marcelo et al, .Vatican City: . .