APA (7th ed.) Citation

Luce, G. G., & Segal, J. (1970). Insomnia : the guide for troubled sleepers / by G.G. Luce and J. Segal: The guide for troubled sleepers. Longman.

Chicago Style (17th ed.) Citation

Luce, G. G., and Julius Segal. Insomnia : The Guide for Troubled Sleepers / by G.G. Luce and J. Segal: The Guide for Troubled Sleepers. Longman, 1970.

MLA (9th ed.) Citation

Luce, G. G., and Julius Segal. Insomnia : The Guide for Troubled Sleepers / by G.G. Luce and J. Segal: The Guide for Troubled Sleepers. Longman, 1970.

Warning: These citations may not always be 100% accurate.