"Historical erros must be rectified for posterity."

by Del Prado, Mariano Goyena
Published 1968

"Peticion de los principales y vecions de la visita de Albay viejo con las Lamba, Rabis y Bigaa..., 1855-1858".

by Del Prado, Mariano Goyena
Published 1961

Talumpati ni Kgg. Mariano Goyena Del Prado dapit sa satong Pambansang Bayani, si Dr. Jose Rizal, sa Albay High School.

by Del Prado, Mariano Goyena
Published 1961

"Adelante, Legzapi".

by Del Prado, Mariano Goyena
Published 1961

"On Kobbe's troops".

by Del Prado, Mariano Goyena
Published 1960

"A short history of the district of Albay".

by Del Prado, Mariano Goyena
Published 1960

Radio message commemorating the birthday of Rizal.

by Del Prado, Mariano Goyena
Published 1959

Discurso del Sr. Luis Montilla, colococion de la placa historica de la Catedral de Manila.

by Del Prado, Mariano Goyena
Published 1958

Speech given at Ritz Hotel de Legazpi.

by Del Prado, Mariano Goyena
Published 1958

"The culture of the Bicol peninsula", paper read before the U.P. Alumni Association, Legazpi College.

by Del Prado, Mariano Goyena
Published 1958