APA (7th ed.) Citation

Tertiary Research Group (Great Britain). Tertiary research. Tertiary Research Group.

Chicago Style (17th ed.) Citation

Tertiary Research Group (Great Britain). Tertiary Research. London: Tertiary Research Group.

MLA (9th ed.) Citation

Tertiary Research Group (Great Britain). Tertiary Research. Tertiary Research Group.

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