Gaya APA

H, S. et al (1987). PTI Strength And Behavior Of Closely Spaced Post-Tensioned Monostrand Anchorages . Farmington Hills: Post tensioning institute.

Gaya MLA

H, Sanders,David. et al. "PTI Strength And Behavior Of Closely Spaced Post-Tensioned Monostrand Anchorages". Farmington Hills: Post tensioning institute, 1987. Text.