APA (7th ed.) Citation

Lamport, L. (1994). LATEX: A document preparation system : user's guide and reference manual (2nd ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Lamport, Leslie. LATEX: A Document Preparation System : User's Guide and Reference Manual. 2nd ed. Reading, Mass: Addison-Wesley, 1994.

MLA (9th ed.) Citation

Lamport, Leslie. LATEX: A Document Preparation System : User's Guide and Reference Manual. 2nd ed. Addison-Wesley, 1994.