APA (7th ed.) Citation

Thánh, H., & Rahtz, S. (1997). The pdfTeX user manual. TeX Users Group.

Chicago Style (17th ed.) Citation

Thánh, H., and S. Rahtz. The PdfTeX User Manual. TeX Users Group, 1997.

MLA (9th ed.) Citation

Thánh, H., and S. Rahtz. The PdfTeX User Manual. TeX Users Group, 1997.

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