Vargas, ?Papas Sudper. 2: 53. 1956 ["1954"].?, 1956.

Vargas and Vargas, ?Papas Sudper. 2: 54. 1956 ["1954"].?, 1956.

Vargas, ?Papas Sudper. 2: 55. 1956 ["1954"].?, 1956.

Vargas and Vargas, ?Papas Sudper. 2: 62. 1956 ["1954"].?, 1956.

Vargas and Vargas, ?Papas Sudper. 2: 56. 1956 ["1954"].?, 1956.

Vargas, ?Papas Sudper. 2: 61. 1956.?, 1956.

Vargas and Vargas, ?Papas Sudper. 2: 60. 1956 ["1954"].?, 1956.