APA (7th ed.) Citation

Roberts, B. (2003). Billy Robert's 10-step psychic development programme: How to unlock your psychic potential. Piatkus.

Chicago Style (17th ed.) Citation

Roberts, Billy. Billy Robert's 10-step Psychic Development Programme: How to Unlock Your Psychic Potential. London: Piatkus, 2003.

MLA (9th ed.) Citation

Roberts, Billy. Billy Robert's 10-step Psychic Development Programme: How to Unlock Your Psychic Potential. Piatkus, 2003.