APA引文

BECKMANN, P. Structural Aspects Of Building Conservation Poul Backmann. s.n.

Chicago Style (17th ed.) Citation

BECKMANN, Poul. Structural Aspects Of Building Conservation Poul Backmann. s.n.

MLA引文

BECKMANN, Poul. Structural Aspects Of Building Conservation Poul Backmann. s.n.

警告：这些引文格式不一定是100％准确.