bass Humberto "Sabú" Rosario
bongos Eladio (Laly) Jusino
congas José Martinez
leader Moncho Leña
piano Hector Rivera
sleeve notes Herman Glass
trumpet Eddie Feijo
trumpet Edil Rivera
trumpet Fernando Sanabria
trumpet José Chiquitín Morales
vocals, featuring Mon Rivera
The main artist is referred to as Moncho Leña And His Orchestra on front cover. This English credit doesn't appear elsewhere. On sleeve notes, spine, back cover and center labels, the band is variably referred to as either Moncho Leña Y Los Ases Del Ritmo or Moncho Leña Y Sus Ases Del Ritmo.

Styles listed on the release:
A1: Plena, A2: Cha Cha Chá, A3: Guaracha, A4: Cha Cha Chá, A5: Merengue, A6: Plena.
B1: Plena, B2: Cha Cha Chá, B3: Merengue, B4: Plena, B5: Guaracha, B6: Plena.
Matrix / Runout: RP-202 (Runout, Side A)
Matrix / Runout: RP-203 (Runout, Side B)