Question: Who wrote Peter and Gordon's biggest hit, "A World Without Love"?
Related documents: [0]  [DOC] Gordon Trueman Riviere Waller (4 June 1945 – 17 July 2009) was a British singer–songwriter–guitarist, best known as Gordon of the 1960s pop music duo Peter and Gordon, whose biggest hit was the No. 1 million-selling classic "A World Without Love". [END] 
[1]  [DOC] "A World Without Love" is a song recorded by the English duo Peter and Gordon and released as their first single in February 1964. It was included on the duo's debut album in the UK, and in the US on an album of the same name. The song was written by Paul McCartney and attributed to Lennon–McCartney. The B-side was "If I Were You", written by Peter and Gordon. [END] 
Answer: 
Paul McCartney
Paul McCartney