[ num ] sp capword sp num . sp capword sp capword sp othword sp capword , sp capword sp year , sp capword sp othword sp upword capword sp othword sp capword / capword , sp num . num . sp - sp num . num . year sp / sp capword . sp othword sp capword sp capword sp [ othword sp othword . ] . sp – – capword othword sp capword , sp year .