The legislative commissioners shall prepare as soon as possible after the adjournment of each regular session of the General Assembly an edition of the public and special acts passed at such regular session in the form of engrossed bills, in numerical order and with a suitable index. The Joint Committee on Legislative Management shall cause to be published such number of copies of such edition of engrossed bills as said committee deems adequate and shall fix the price at which the same shall be sold. The publication shall be under the supervision of said commissioners, who shall affix thereto their certificate that said public and special acts are correct copies of those engrossed and on file in the office of the Secretary of the State.