"On the first of every month, present to the LORD a burnt offering of two young bulls, one ram and seven male lambs a year old, all without defect." (NIV)
And at the beginning of your months you shall offer a burnt offering to the Lord: two young bulls, one ram, seven male lambs a year old without spot or blemish (AMP)
And in the beginnings of your months ye shall offer a burnt offering unto the LORD; two young bullocks, and one ram, seven lambs of the first year without spot; (KJV)