APA (7th ed.) Citation

Engel, H. (1968). Structure systems / by H. Engel. Iliffe.

Chicago Style (17th ed.) Citation

Engel, H. Structure Systems / by H. Engel. Iliffe, 1968.

MLA (9th ed.) Citation

Engel, H. Structure Systems / by H. Engel. Iliffe, 1968.

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