Knowing what your looking for is half the battle, unfortunately wasn't able to find a free copy yet.
Tombstone: The Great Chinese Famine, 1958-1962
by Yang Jisheng
Tombstone: The Great Famine
Beginning in the early 1990s, Yang began interviewing people and collecting records of The Great Famine of 1959–1961, in which his own foster father had died, eventually accumulating ten million words of records. He published a two-volume 1,208 page account of the period, in which he meticulously cited his sources to prevent the Chinese government from dismissing it. It was widely acclaimed as being the definitive account of the Great Famine. He begins the book,
I call this book Tombstone. It is a tombstone for my [foster] father who died of hunger in 1959, for the 36 million Chinese who also died of hunger, for the system that caused their death, and perhaps for myself for writing this book.
The book was published in Hong Kong and is banned in mainland China. In 2012 translations into French, German, and English (which has been condensed almost by 50%) have been published.