APA ציטוט

Blank,Leland P E. (1998). Engneering economy (4.). MacGraw Hill.

Chicago Edition Citation

Blank,Leland P E. Engneering Economy. 4. Singapore: MacGraw Hill, 1998.

ציטוט MLA

Blank,Leland P E. Engneering Economy. 4. MacGraw Hill, 1998.