APA (7th ed.) Citation

Baker, S., & DeGroot, A. (1930). Concrete engineer's manual . A convenient reference book.

Chicago Style (17th ed.) Citation

Baker, Samuel, and A. DeGroot. Concrete Engineer's Manual . A Convenient Reference Book. Scranton, Pa., International textbook company, 1930.

MLA (9th ed.) Citation

Baker, Samuel, and A. DeGroot. Concrete Engineer's Manual . A Convenient Reference Book. 1930.