APA Format
Putsep, Ervin . (). Modern...: Floors, ramps, steps, walls, shielding, openings, ( Bab. ) ( halaman 287-302 ). : London Lloyd Luke Ltd. 1981
MLA Format
Putsep, Ervin . Modern...: Floors, ramps, steps, walls, shielding, openings, ( Bab. ) ( halaman 287-302 ). : London Lloyd Luke Ltd. 1981,
Australian/Harvard Format
Putsep, Ervin . . Modern...: Floors, ramps, steps, walls, shielding, openings, ( Bab. ) ( halaman 287-302 ). London Lloyd Luke Ltd. 1981, 
Warning: These citations may not always be 100% accurate.