[ capword sp othword sp othword . ( year ) capword , sp capword , sp & sp capword ] sp capword , sp caplet . , sp capword , sp caplet . , sp & sp capword , caplet . sp ( year ) . sp capword : sp capword - othword sp othword sp othword sp othword sp othword sp othword sp othword sp othword sp othword othword sp othword sp othword sp othword sp othword . sp capword sp capword sp othword sp othword sp capword sp capword sp othword sp capword capword sp ( upword ) sp capword . sp capword , sp othword . sp num , sp num – num . sp upword sp othword : / / othword . othword / othword / year . num .