TEXTS OF THE AGREEMENT. This Agreement shall be signed in a single original in the English, French, and Spanish languages, each version being equally authentic.
TEXTS OF THE AGREEMENT. This Agreement shall be signed in the English, French and Spanish languages, which shall be equally authentic.
TEXTS OF THE AGREEMENT. The treaty makes equally authoritative English, French and Spanish versions of the text, which for the purposes of signature are part of a single document.
TEXTS OF THE AGREEMENT. This Agreement shall be [signed in a single official copy in the English language] [Can: signed in the English and French languages, both copies being equally authentic] and copies established in the [insert name(s) of language(s)]. [Mex: Depending on resolution of the French language issue, other languages may be proposed].