Gaya APA

Brumfiel, C, F., ì, I, E, R, E, I, S, M, E. (NULL). Geometry . Masschusetts:: .

Gaya MLA

Brumfiel, Charles, F.., ì, I., Eicholz,, Robert, E., II., Shanks,, Merrill, E.. "Geometry". Masschusetts:: , NULL. Text.