APA-referens (7:e uppl.)

(1947). Digest of state laws governing the practice of engineering and land surveying, and of state board procedures.

Chicago-referens (17:e uppl.)

Digest of State Laws Governing the Practice of Engineering and Land Surveying, and of State Board Procedures. 1947.

MLA-referens (9:e uppl.)

Digest of State Laws Governing the Practice of Engineering and Land Surveying, and of State Board Procedures. 1947.

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