Valmer, E. U. Letter, To: Charles Brown, From: E. U. Valmer ... [et al.], [n.d.].
Chicago Style (17th ed.) CitationValmer, E. U. Letter, To: Charles Brown, From: E. U. Valmer ... [et Al.], [n.d.].
MLA (8th ed.) CitationValmer, E. U. Letter, To: Charles Brown, From: E. U. Valmer ... [et Al.], [n.d.].