APA Style

Mentor, P. (2024). Self-instruction for students in gas engineering. Being answers to questions based on the ordinary grade syllabus in gas engineering of the city and guilds of London Institute . : University of California Libraries.

MLA Style

Mentor, Pseud. "Self-instruction for students in gas engineering. Being answers to questions based on the ordinary grade syllabus in gas engineering of the city and guilds of London Institute". : University of California Libraries, 2024. Text.