Dyfyniad APA

DACEL bulletin. District & City Engineers League of the Philippines.

Dyfyniad Arddull Chicago

DACEL Bulletin. Manila: District & City Engineers League of the Philippines.

Dyfyniad MLA

DACEL Bulletin. District & City Engineers League of the Philippines.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.