APA (7th ed.) Citation

Smith, R. (2016). English sounds: The two TH consonants. Rachel's English.

Chicago Style (17th ed.) Citation

Smith, Rachel. English Sounds: The Two TH Consonants. Philadelphia, PA: Rachel's English, 2016.

MLA (9th ed.) Citation

Smith, Rachel. English Sounds: The Two TH Consonants. Rachel's English, 2016.

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